{"title":"BOCI BLT461 Laser Head Parts","description":"\u003cp\u003eAftermarket consumables that fit the BOCI BLT461: nozzles, protective windows, ceramics and other wear parts, each matched to the BOCI part number it replaces.\u003c\/p\u003e","products":[{"product_id":"boci-bochu-d28-aftermarket-laser-cutting-nozzle-pack-of-10-single-double-layer-m11-x-h15","title":"BOCI Bochu D28 Aftermarket Laser Cutting Nozzle, Pack of 10, Single \u0026 Double Layer, M11 x H15","description":"\u003cdiv style=\"font-family:Roboto,sans-serif;color:#1a1a1a;line-height:1.6\"\u003e\n\u003cstyle\u003e@import url('https:\/\/fonts.googleapis.com\/css2?family=Roboto+Condensed:wght@700\u0026family=Roboto:wght@400;700;900\u0026display=swap');.spm-c{border:1px solid #d1d1d1;background:#fff;margin-bottom:25px;overflow:hidden}.spm-h{padding:15px 20px;background:#ffce02;border-bottom:1px solid #d1d1d1;font-weight:900;text-transform:uppercase;font-size:16px;color:#000;letter-spacing:.05em;font-family:'Roboto Condensed',sans-serif}.spm-t{width:100%;border-collapse:collapse;font-size:15px}.spm-t th{padding:12px 10px;text-align:left;background:#f4f4f4;font-size:12px;text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid #d1d1d1;color:#000}.spm-t td{padding:11px 10px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}.spmL{font-weight:700;color:#333;background:#fcfcfc;width:38%}.spm-sub{display:block;color:#777;font-size:12.5px;margin-top:2px}.spm-chip{display:inline-block;margin:0 8px 8px 0;padding:6px 12px;border:1px solid #d1d1d1;background:#fcfcfc;font-size:14px;font-weight:700;color:#000}.spm-h2{font-family:'Roboto Condensed',sans-serif;font-size:24px;font-weight:900;color:#000;text-transform:uppercase;margin:40px 0 20px;letter-spacing:.05em;border-bottom:3px solid #ffce02;padding-bottom:15px}.spm-p{font-size:16px;line-height:1.8;margin:0 0 18px}@media(max-width:700px){.spmL{width:auto}}\u003c\/style\u003e\n\u003cp class=\"spm-p\"\u003eA pack of 10 copper laser cutting nozzles in the BOCI (Bochu) standard D28 format: 28 mm outer diameter, 15 mm height and an M11 x 0.75 thread, the nozzle used on BLT310 and BLT4xx series cutting heads. Sizes are listed against the BOCI standard nozzle part numbers (DY.Z.E00xxAA single layer, Y.Z.E0034 double layer) where BOCI publishes them.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003eEach nozzle is machined from high conductivity copper with a concentric bore for a centred gas jet and a clean capacitive sensing electrode. Because D28 x H15 x M11 is a shared industry size, the same nozzle also fits Raytools D28 and Precitec HP1.5 inch heads in a mixed workshop.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003eSingle layer for oxygen cutting of carbon steel, double layer for nitrogen or air cutting of stainless steel and aluminium. Packs of 10.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eTechnical Properties \u0026amp; Sizes\u003c\/h2\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eSpecifications\u003c\/div\u003e\n\u003ctable class=\"spm-t\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003ePack Quantity\u003c\/td\u003e\n\u003ctd\u003e10 nozzles, all the same layer and bore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e28 mm (1 3\/32\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e15 mm (19\/32\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eThread\u003c\/td\u003e\n\u003ctd\u003eM11 x 0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCopper (high conductivity)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eLayer\u003c\/td\u003e\n\u003ctd\u003esingle layer or double layer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eBore Sizes\u003c\/td\u003e\n\u003ctd\u003e0.8 mm to 6 mm (17 sizes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003ePart Numbers\u003c\/td\u003e\n\u003ctd\u003eBOCI DY.Z.E0035AA, DY.Z.E0036AA, DY.Z.E0037AA and more (see table)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eCompatibility\u003c\/div\u003e\n\u003cdiv style=\"padding:20px\"\u003e\n\u003cp style=\"margin:0 0 10px;font-weight:700;color:#333\"\u003eBOCI (Bochu) cutting heads\u003c\/p\u003e\n\u003cdiv\u003e\n\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt310-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT310\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt420-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT420\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt421-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT421\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt421s-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT421S\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt441-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT441\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt461-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT461\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt481-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT481\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:13px;color:#666;margin:0 0 18px\"\u003eBOCI heads that take the D28 x H15 x M11 standard nozzle. Check the nozzle currently fitted if unsure.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 10px;font-weight:700;color:#333\"\u003eSame nozzle size, other brands\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cspan class=\"spm-chip\"\u003eRaytools D28 heads\u003c\/span\u003e\u003cspan class=\"spm-chip\"\u003ePrecitec HP1.5 inch heads\u003c\/span\u003e\u003cspan class=\"spm-chip\"\u003eWSX\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:13px;color:#666;margin:0 0 18px\"\u003eD28 x H15 x M11 is a shared industry size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eFind Your Size by Part Number\u003c\/div\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable class=\"spm-t\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBore\u003c\/th\u003e\n\u003cth\u003eSingle Layer\u003cspan class=\"spm-sub\"\u003eBOCI no. (SPM no.)\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003eDouble Layer\u003cspan class=\"spm-sub\"\u003eBOCI no. (SPM no.)\u003c\/span\u003e\n\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003e0.8 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-S08)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-D08)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003e1.0 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-S10)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-D10)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003e1.2 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eDY.Z.E0049AA\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-S12)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-D12)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003e1.3 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-S13)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-D13)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003e1.4 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eDY.Z.E0035AA\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-S14)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-D14)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003e1.5 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-S15)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-D15)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003e1.6 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eDY.Z.E0036AA\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-S16)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-D16)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003e1.7 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-S17)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-D17)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003e1.8 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eDY.Z.E0037AA\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-S18)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-D18)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003e2.0 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eDY.Z.E0038AA\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-S20)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eY.Z.E0034\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-D20)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003e2.5 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eDY.Z.E0039AA\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-S25)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-D25)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003e3.0 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eDY.Z.E0040AA\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-S30)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-D30)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003e3.5 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-S35)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-D35)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003e4.0 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eDY.Z.E0053AA\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-S40)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-D40)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003e4.5 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-S45)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-D45)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003e5.0 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-S50)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-D50)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003e6.0 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-S60)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color:#999\"\u003eNo BOCI equivalent\u003c\/span\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2114-D60)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"spm-h2\"\u003eApplications \u0026amp; Use Cases\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eCarbon steel, oxygen\u003c\/strong\u003e\u003cbr\u003eUse single layer nozzles. Small bores (0.8 to 1.2 mm) for thin sheet, 1.5 to 2.0 mm for most 3 to 10 mm plate, 2.5 mm and up for thick plate.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eStainless steel and aluminium, nitrogen or air\u003c\/strong\u003e\u003cbr\u003eUse double layer nozzles. Larger bores are used on thicker material where more gas is needed.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003ePoor cut quality\u003c\/strong\u003e\u003cbr\u003eDross, a wandering kerf or bad piercing are often caused by a damaged or dirty nozzle. Fit a new nozzle of the same bore before changing other settings.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eHeight sensing faults\u003c\/strong\u003e\u003cbr\u003eThe nozzle is part of the capacitive height sensor. A worn or loose nozzle causes height alarms.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003ePrice Beat Guarantee\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003eFound this part cheaper elsewhere? Send us the listing and we will beat it under our \u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"color:#000;text-decoration:underline\"\u003ePrice Beat Guarantee\u003c\/a\u003e. Every order is also covered by our \u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"color:#000;text-decoration:underline\"\u003e30 day money back guarantee\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eWill this fit my BOCI head?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eBOCI heads that take the D28 x H15 x M11 standard nozzle. Check the nozzle currently fitted if unsure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eIs this a genuine BOCI part?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eNo. It is an aftermarket nozzle made to the same 28 x 15 mm, M11 dimensions. BOCI part numbers are listed so you can match your existing nozzle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow many nozzles are in a pack?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003e10, all the same layer and bore size you select. Nozzles are only sold in packs of 10.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eSingle layer or double layer?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eSingle layer for oxygen cutting of carbon steel. Double layer for nitrogen or air cutting of stainless steel and aluminium, where the inner cone stabilises the high pressure jet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eWhich bore should I choose?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eUse your machine's cutting chart for the material and thickness. As a guide, thin sheet runs 0.8 to 1.5 mm, mid plate 1.5 to 2.5 mm and thick plate 3.0 mm and up. Bigger bores pass more gas at lower velocity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow often should nozzles be changed?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eWhen the bore is damaged, out of round or coated in spatter that will not clean off, or when height sensing becomes unstable. Busy machines often change nozzles daily.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eDo you ship worldwide?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eYes. Shipping options and costs for your country are shown at checkout.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top:50px;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#d1d1d1;border:1px solid #d1d1d1;margin-bottom:20px\" class=\"spm-trust\"\u003e\n\u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4zm-2 16l-4-4 1.41-1.41L10 14.17l6.59-6.59L18 9l-8 8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003e30-Day Money Back Guarantee\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/delivery-information\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-1 17.93c-3.95-.49-7-3.85-7-7.93 0-.62.08-1.21.21-1.79L9 15v1c0 1.1.9 2 2 2v1.93zm6.9-2.54c-.26-.81-1-1.39-1.9-1.39h-1v-3c0-.55-.45-1-1-1H8v-2h2c.55 0 1-.45 1-1V7h2c1.1 0 2-.9 2-2v-.41c2.93 1.19 5 4.06 5 7.41 0 2.08-.8 3.97-2.1 5.39z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003eWorldwide Delivery\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M21.41 11.58l-9-9C12.05 2.22 11.55 2 11 2H4c-1.1 0-2 .9-2 2v7c0 .55.22 1.05.59 1.42l9 9c.36.36.86.58 1.41.58.55 0 1.05-.22 1.41-.59l7-7c.37-.36.59-.86.59-1.41 0-.55-.23-1.06-.59-1.42zM5.5 8.25c-.69 0-1.25-.56-1.25-1.25s.56-1.25 1.25-1.25 1.25.56 1.25 1.25-.56 1.25-1.25 1.25z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003ePrice Beat Guarantee\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Will this fit my BOCI head?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"BOCI heads that take the D28 x H15 x M11 standard nozzle. Check the nozzle currently fitted if unsure.\"}}, {\"@type\": \"Question\", \"name\": \"Is this a genuine BOCI part?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. It is an aftermarket nozzle made to the same 28 x 15 mm, M11 dimensions. BOCI part numbers are listed so you can match your existing nozzle.\"}}, {\"@type\": \"Question\", \"name\": \"How many nozzles are in a pack?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"10, all the same layer and bore size you select. Nozzles are only sold in packs of 10.\"}}, {\"@type\": \"Question\", \"name\": \"Single layer or double layer?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Single layer for oxygen cutting of carbon steel. Double layer for nitrogen or air cutting of stainless steel and aluminium, where the inner cone stabilises the high pressure jet.\"}}, {\"@type\": \"Question\", \"name\": \"Which bore should I choose?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Use your machine's cutting chart for the material and thickness. As a guide, thin sheet runs 0.8 to 1.5 mm, mid plate 1.5 to 2.5 mm and thick plate 3.0 mm and up. Bigger bores pass more gas at lower velocity.\"}}, {\"@type\": \"Question\", \"name\": \"How often should nozzles be changed?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"When the bore is damaged, out of round or coated in spatter that will not clean off, or when height sensing becomes unstable. Busy machines often change nozzles daily.\"}}, {\"@type\": \"Question\", \"name\": \"Do you ship worldwide?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Shipping options and costs for your country are shown at checkout.\"}}]}]}\u003c\/script\u003e","brand":"Spare Part Mart","offers":[{"title":"Single \/ 0.8 mm","offer_id":67557077778732,"sku":"SPM-LAS-2114-S08-X10","price":20.32,"currency_code":"USD","in_stock":true},{"title":"Double \/ 0.8 mm","offer_id":67557077811500,"sku":"SPM-LAS-2114-D08-X10","price":26.48,"currency_code":"USD","in_stock":true},{"title":"Single \/ 1.0 mm","offer_id":67557077844268,"sku":"SPM-LAS-2114-S10-X10","price":20.32,"currency_code":"USD","in_stock":true},{"title":"Double \/ 1.0 mm","offer_id":67557077877036,"sku":"SPM-LAS-2114-D10-X10","price":26.48,"currency_code":"USD","in_stock":true},{"title":"Single \/ 1.2 mm","offer_id":67557077909804,"sku":"SPM-LAS-2114-S12-X10","price":20.32,"currency_code":"USD","in_stock":true},{"title":"Double \/ 1.2 mm","offer_id":67557077942572,"sku":"SPM-LAS-2114-D12-X10","price":26.48,"currency_code":"USD","in_stock":true},{"title":"Single \/ 1.3 mm","offer_id":67557077975340,"sku":"SPM-LAS-2114-S13-X10","price":20.32,"currency_code":"USD","in_stock":true},{"title":"Double \/ 1.3 mm","offer_id":67557078008108,"sku":"SPM-LAS-2114-D13-X10","price":26.48,"currency_code":"USD","in_stock":true},{"title":"Single \/ 1.4 mm","offer_id":67557078040876,"sku":"SPM-LAS-2114-S14-X10","price":20.32,"currency_code":"USD","in_stock":true},{"title":"Double \/ 1.4 mm","offer_id":67557078073644,"sku":"SPM-LAS-2114-D14-X10","price":26.48,"currency_code":"USD","in_stock":true},{"title":"Single \/ 1.5 mm","offer_id":67557078106412,"sku":"SPM-LAS-2114-S15-X10","price":20.32,"currency_code":"USD","in_stock":true},{"title":"Double \/ 1.5 mm","offer_id":67557078139180,"sku":"SPM-LAS-2114-D15-X10","price":26.48,"currency_code":"USD","in_stock":true},{"title":"Single \/ 1.6 mm","offer_id":67557078171948,"sku":"SPM-LAS-2114-S16-X10","price":20.32,"currency_code":"USD","in_stock":true},{"title":"Double \/ 1.6 mm","offer_id":67557078204716,"sku":"SPM-LAS-2114-D16-X10","price":26.48,"currency_code":"USD","in_stock":true},{"title":"Single \/ 1.7 mm","offer_id":67557078237484,"sku":"SPM-LAS-2114-S17-X10","price":20.32,"currency_code":"USD","in_stock":true},{"title":"Double \/ 1.7 mm","offer_id":67557078270252,"sku":"SPM-LAS-2114-D17-X10","price":26.48,"currency_code":"USD","in_stock":true},{"title":"Single \/ 1.8 mm","offer_id":67557078303020,"sku":"SPM-LAS-2114-S18-X10","price":20.32,"currency_code":"USD","in_stock":true},{"title":"Double \/ 1.8 mm","offer_id":67557078335788,"sku":"SPM-LAS-2114-D18-X10","price":26.48,"currency_code":"USD","in_stock":true},{"title":"Single \/ 2.0 mm","offer_id":67557078368556,"sku":"SPM-LAS-2114-S20-X10","price":20.32,"currency_code":"USD","in_stock":true},{"title":"Double \/ 2.0 mm","offer_id":67557078401324,"sku":"SPM-LAS-2114-D20-X10","price":26.48,"currency_code":"USD","in_stock":true},{"title":"Single \/ 2.5 mm","offer_id":67557078434092,"sku":"SPM-LAS-2114-S25-X10","price":20.32,"currency_code":"USD","in_stock":true},{"title":"Double \/ 2.5 mm","offer_id":67557078466860,"sku":"SPM-LAS-2114-D25-X10","price":26.48,"currency_code":"USD","in_stock":true},{"title":"Single \/ 3.0 mm","offer_id":67557078499628,"sku":"SPM-LAS-2114-S30-X10","price":20.32,"currency_code":"USD","in_stock":true},{"title":"Double \/ 3.0 mm","offer_id":67557078532396,"sku":"SPM-LAS-2114-D30-X10","price":26.48,"currency_code":"USD","in_stock":true},{"title":"Single \/ 3.5 mm","offer_id":67557078565164,"sku":"SPM-LAS-2114-S35-X10","price":20.32,"currency_code":"USD","in_stock":true},{"title":"Double \/ 3.5 mm","offer_id":67557078597932,"sku":"SPM-LAS-2114-D35-X10","price":26.48,"currency_code":"USD","in_stock":true},{"title":"Single \/ 4.0 mm","offer_id":67557078630700,"sku":"SPM-LAS-2114-S40-X10","price":20.32,"currency_code":"USD","in_stock":true},{"title":"Double \/ 4.0 mm","offer_id":67557078663468,"sku":"SPM-LAS-2114-D40-X10","price":26.48,"currency_code":"USD","in_stock":true},{"title":"Single \/ 4.5 mm","offer_id":67557078696236,"sku":"SPM-LAS-2114-S45-X10","price":20.32,"currency_code":"USD","in_stock":true},{"title":"Double \/ 4.5 mm","offer_id":67557078729004,"sku":"SPM-LAS-2114-D45-X10","price":26.48,"currency_code":"USD","in_stock":true},{"title":"Single \/ 5.0 mm","offer_id":67557078761772,"sku":"SPM-LAS-2114-S50-X10","price":20.32,"currency_code":"USD","in_stock":true},{"title":"Double \/ 5.0 mm","offer_id":67557078794540,"sku":"SPM-LAS-2114-D50-X10","price":26.48,"currency_code":"USD","in_stock":true},{"title":"Single \/ 6.0 mm","offer_id":67557078827308,"sku":"SPM-LAS-2114-S60-X10","price":20.32,"currency_code":"USD","in_stock":true},{"title":"Double \/ 6.0 mm","offer_id":67557078860076,"sku":"SPM-LAS-2114-D60-X10","price":26.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/9152\/6700\/files\/spm_0_ef72c665-1e92-494e-9f22-b837cbcafbb4.jpg?v=1790894344"},{"product_id":"boci-dp-v-p0048aa-aftermarket-protective-window-d25-4-x-4-mm-8-kw","title":"BOCI DP.V.P0048AA Aftermarket Protective Window, D25.4 x 4 mm, 8 kW","description":"\u003cdiv style=\"font-family:Roboto,sans-serif;color:#1a1a1a;line-height:1.6\"\u003e\n\u003cstyle\u003e@import url('https:\/\/fonts.googleapis.com\/css2?family=Roboto+Condensed:wght@700\u0026family=Roboto:wght@400;700;900\u0026display=swap');.spm-c{border:1px solid #d1d1d1;background:#fff;margin-bottom:25px;overflow:hidden}.spm-h{padding:15px 20px;background:#ffce02;border-bottom:1px solid #d1d1d1;font-weight:900;text-transform:uppercase;font-size:16px;color:#000;letter-spacing:.05em;font-family:'Roboto Condensed',sans-serif}.spm-t{width:100%;border-collapse:collapse;font-size:15px}.spm-t th{padding:12px 10px;text-align:left;background:#f4f4f4;font-size:12px;text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid #d1d1d1;color:#000}.spm-t td{padding:11px 10px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}.spmL{font-weight:700;color:#333;background:#fcfcfc;width:38%}.spm-sub{display:block;color:#777;font-size:12.5px;margin-top:2px}.spm-chip{display:inline-block;margin:0 8px 8px 0;padding:6px 12px;border:1px solid #d1d1d1;background:#fcfcfc;font-size:14px;font-weight:700;color:#000}.spm-h2{font-family:'Roboto Condensed',sans-serif;font-size:24px;font-weight:900;color:#000;text-transform:uppercase;margin:40px 0 20px;letter-spacing:.05em;border-bottom:3px solid #ffce02;padding-bottom:15px}.spm-p{font-size:16px;line-height:1.8;margin:0 0 18px}@media(max-width:700px){.spmL{width:auto}}\u003c\/style\u003e\n\u003cp class=\"spm-p\"\u003eAftermarket protective window for BOCI laser cutting heads. Replaces BOCI DP.V.P0048AA. Size D25.4 x 4 mm, 8 kW. Fused silica, anti reflection coated on both faces for 1064 nm fiber lasers.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003eFits BLT310, BLT420, BLT421, BLT441, BLT461, BLT481, BLT641. Sold in packs of 1, 5 or 10.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eTechnical Properties \u0026amp; Sizes\u003c\/h2\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eSpecifications\u003c\/div\u003e\n\u003ctable class=\"spm-t\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eReplaces\u003c\/td\u003e\n\u003ctd\u003eBOCI DP.V.P0048AA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eSize\u003c\/td\u003e\n\u003ctd\u003eD25.4 x 4 mm, 8 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003ePower Rating\u003c\/td\u003e\n\u003ctd\u003e8 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eFused silica, AR coated both faces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003ePack Options\u003c\/td\u003e\n\u003ctd\u003e1 pack, 5 pack, 10 pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eCompatibility\u003c\/div\u003e\n\u003cdiv style=\"padding:20px\"\u003e\n\u003cp style=\"margin:0 0 10px;font-weight:700;color:#333\"\u003eBOCI heads\u003c\/p\u003e\n\u003cdiv\u003e\n\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt310-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT310\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt420-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT420\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt421-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT421\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt441-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT441\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt461-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT461\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt481-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT481\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt641-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT641\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:13px;color:#666;margin:0 0 18px\"\u003eMatch the window size and part number in your head.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eFind Your Size by Part Number\u003c\/div\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable class=\"spm-t\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003cth\u003eBOCI Part No.\u003cspan class=\"spm-sub\"\u003e(SPM Part No.)\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eD25.4 x 4 mm, 8 kW\u003c\/td\u003e\n\u003ctd\u003eD25.4 x 4 mm, 8 kW\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eDP.V.P0048AA\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2138)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003eBLT310, BLT420, BLT421, BLT441, BLT461, BLT481, BLT641\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"spm-h2\"\u003eApplications \u0026amp; Use Cases\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eRoutine changes\u003c\/strong\u003e\u003cbr\u003eReplace the window when it shows spatter, pitting or burn marks. A dirty window absorbs power and can crack.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eProtecting the focusing lens\u003c\/strong\u003e\u003cbr\u003eThe window keeps spatter and fume off the focusing lens above it.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eLoss of cutting power\u003c\/strong\u003e\u003cbr\u003eIf piercing slows or the kerf widens, check the protective window before changing cutting parameters.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003ePrice Beat Guarantee\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003eFound this part cheaper elsewhere? Send us the listing and we will beat it under our \u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"color:#000;text-decoration:underline\"\u003ePrice Beat Guarantee\u003c\/a\u003e. Every order is also covered by our \u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"color:#000;text-decoration:underline\"\u003e30 day money back guarantee\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow do I know this is the right window?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eCheck the part number on the old window's packaging or your parts list, or measure the diameter and thickness. They must match the size shown.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eIs it a genuine part?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eNo. It is an aftermarket window made to the same size. The OEM part number is shown so you can match the window you are replacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003e1 pack, 5 pack or 10 pack?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eIt is the same window in each. The 10 pack has the lowest price per window.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow should I handle it?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eHold it by the edge with clean gloves and keep it in its case until fitting. Clean only with lens tissue and optical alcohol.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top:50px;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#d1d1d1;border:1px solid #d1d1d1;margin-bottom:20px\" class=\"spm-trust\"\u003e\n\u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4zm-2 16l-4-4 1.41-1.41L10 14.17l6.59-6.59L18 9l-8 8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003e30-Day Money Back Guarantee\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/delivery-information\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-1 17.93c-3.95-.49-7-3.85-7-7.93 0-.62.08-1.21.21-1.79L9 15v1c0 1.1.9 2 2 2v1.93zm6.9-2.54c-.26-.81-1-1.39-1.9-1.39h-1v-3c0-.55-.45-1-1-1H8v-2h2c.55 0 1-.45 1-1V7h2c1.1 0 2-.9 2-2v-.41c2.93 1.19 5 4.06 5 7.41 0 2.08-.8 3.97-2.1 5.39z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003eWorldwide Delivery\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M21.41 11.58l-9-9C12.05 2.22 11.55 2 11 2H4c-1.1 0-2 .9-2 2v7c0 .55.22 1.05.59 1.42l9 9c.36.36.86.58 1.41.58.55 0 1.05-.22 1.41-.59l7-7c.37-.36.59-.86.59-1.41 0-.55-.23-1.06-.59-1.42zM5.5 8.25c-.69 0-1.25-.56-1.25-1.25s.56-1.25 1.25-1.25 1.25.56 1.25 1.25-.56 1.25-1.25 1.25z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003ePrice Beat Guarantee\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How do I know this is the right window?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Check the part number on the old window's packaging or your parts list, or measure the diameter and thickness. They must match the size shown.\"}}, {\"@type\": \"Question\", \"name\": \"Is it a genuine part?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. It is an aftermarket window made to the same size. The OEM part number is shown so you can match the window you are replacing.\"}}, {\"@type\": \"Question\", \"name\": \"1 pack, 5 pack or 10 pack?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is the same window in each. The 10 pack has the lowest price per window.\"}}, {\"@type\": \"Question\", \"name\": \"How should I handle it?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Hold it by the edge with clean gloves and keep it in its case until fitting. Clean only with lens tissue and optical alcohol.\"}}]}]}\u003c\/script\u003e","brand":"Spare Part Mart","offers":[{"title":"1 Pack","offer_id":67557099209004,"sku":"SPM-LAS-2138-P1","price":1.43,"currency_code":"USD","in_stock":true},{"title":"5 Pack","offer_id":67557099241772,"sku":"SPM-LAS-2138-P5","price":6.6,"currency_code":"USD","in_stock":true},{"title":"10 Pack","offer_id":67557099274540,"sku":"SPM-LAS-2138-P10","price":12.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/9152\/6700\/files\/spm_0_cee8090b-8658-4404-b41e-17764e37e66e.jpg?v=1790912635"},{"product_id":"boci-dp-v-p0049aa-aftermarket-protective-window-d34-x-5-mm-8-to-10-kw","title":"BOCI DP.V.P0049AA Aftermarket Protective Window, D34 x 5 mm, 8 to 10 kW","description":"\u003cdiv style=\"font-family:Roboto,sans-serif;color:#1a1a1a;line-height:1.6\"\u003e\n\u003cstyle\u003e@import url('https:\/\/fonts.googleapis.com\/css2?family=Roboto+Condensed:wght@700\u0026family=Roboto:wght@400;700;900\u0026display=swap');.spm-c{border:1px solid #d1d1d1;background:#fff;margin-bottom:25px;overflow:hidden}.spm-h{padding:15px 20px;background:#ffce02;border-bottom:1px solid #d1d1d1;font-weight:900;text-transform:uppercase;font-size:16px;color:#000;letter-spacing:.05em;font-family:'Roboto Condensed',sans-serif}.spm-t{width:100%;border-collapse:collapse;font-size:15px}.spm-t th{padding:12px 10px;text-align:left;background:#f4f4f4;font-size:12px;text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid #d1d1d1;color:#000}.spm-t td{padding:11px 10px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}.spmL{font-weight:700;color:#333;background:#fcfcfc;width:38%}.spm-sub{display:block;color:#777;font-size:12.5px;margin-top:2px}.spm-chip{display:inline-block;margin:0 8px 8px 0;padding:6px 12px;border:1px solid #d1d1d1;background:#fcfcfc;font-size:14px;font-weight:700;color:#000}.spm-h2{font-family:'Roboto Condensed',sans-serif;font-size:24px;font-weight:900;color:#000;text-transform:uppercase;margin:40px 0 20px;letter-spacing:.05em;border-bottom:3px solid #ffce02;padding-bottom:15px}.spm-p{font-size:16px;line-height:1.8;margin:0 0 18px}@media(max-width:700px){.spmL{width:auto}}\u003c\/style\u003e\n\u003cp class=\"spm-p\"\u003eAftermarket protective window for BOCI laser cutting heads. Replaces BOCI DP.V.P0049AA. Size D34 x 5 mm, 8 to 10 kW. Fused silica, anti reflection coated on both faces for 1064 nm fiber lasers.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003eFits BLT310, BLT420, BLT421, BLT441, BLT461, BLT481, BLT641. Sold in packs of 1, 5 or 10.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eTechnical Properties \u0026amp; Sizes\u003c\/h2\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eSpecifications\u003c\/div\u003e\n\u003ctable class=\"spm-t\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eReplaces\u003c\/td\u003e\n\u003ctd\u003eBOCI DP.V.P0049AA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eSize\u003c\/td\u003e\n\u003ctd\u003eD34 x 5 mm, 8 to 10 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003ePower Rating\u003c\/td\u003e\n\u003ctd\u003e10 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eFused silica, AR coated both faces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003ePack Options\u003c\/td\u003e\n\u003ctd\u003e1 pack, 5 pack, 10 pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eCompatibility\u003c\/div\u003e\n\u003cdiv style=\"padding:20px\"\u003e\n\u003cp style=\"margin:0 0 10px;font-weight:700;color:#333\"\u003eBOCI heads\u003c\/p\u003e\n\u003cdiv\u003e\n\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt310-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT310\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt420-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT420\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt421-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT421\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt441-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT441\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt461-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT461\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt481-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT481\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt641-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT641\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:13px;color:#666;margin:0 0 18px\"\u003eMatch the window size and part number in your head.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eFind Your Size by Part Number\u003c\/div\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable class=\"spm-t\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003cth\u003eBOCI Part No.\u003cspan class=\"spm-sub\"\u003e(SPM Part No.)\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eD34 x 5 mm, 8 to 10 kW\u003c\/td\u003e\n\u003ctd\u003eD34 x 5 mm, 8 to 10 kW\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eDP.V.P0049AA\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2139)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003eBLT310, BLT420, BLT421, BLT441, BLT461, BLT481, BLT641\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"spm-h2\"\u003eApplications \u0026amp; Use Cases\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eRoutine changes\u003c\/strong\u003e\u003cbr\u003eReplace the window when it shows spatter, pitting or burn marks. A dirty window absorbs power and can crack.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eProtecting the focusing lens\u003c\/strong\u003e\u003cbr\u003eThe window keeps spatter and fume off the focusing lens above it.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eLoss of cutting power\u003c\/strong\u003e\u003cbr\u003eIf piercing slows or the kerf widens, check the protective window before changing cutting parameters.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003ePrice Beat Guarantee\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003eFound this part cheaper elsewhere? Send us the listing and we will beat it under our \u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"color:#000;text-decoration:underline\"\u003ePrice Beat Guarantee\u003c\/a\u003e. Every order is also covered by our \u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"color:#000;text-decoration:underline\"\u003e30 day money back guarantee\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow do I know this is the right window?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eCheck the part number on the old window's packaging or your parts list, or measure the diameter and thickness. They must match the size shown.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eIs it a genuine part?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eNo. It is an aftermarket window made to the same size. The OEM part number is shown so you can match the window you are replacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003e1 pack, 5 pack or 10 pack?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eIt is the same window in each. The 10 pack has the lowest price per window.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow should I handle it?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eHold it by the edge with clean gloves and keep it in its case until fitting. Clean only with lens tissue and optical alcohol.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top:50px;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#d1d1d1;border:1px solid #d1d1d1;margin-bottom:20px\" class=\"spm-trust\"\u003e\n\u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4zm-2 16l-4-4 1.41-1.41L10 14.17l6.59-6.59L18 9l-8 8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003e30-Day Money Back Guarantee\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/delivery-information\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-1 17.93c-3.95-.49-7-3.85-7-7.93 0-.62.08-1.21.21-1.79L9 15v1c0 1.1.9 2 2 2v1.93zm6.9-2.54c-.26-.81-1-1.39-1.9-1.39h-1v-3c0-.55-.45-1-1-1H8v-2h2c.55 0 1-.45 1-1V7h2c1.1 0 2-.9 2-2v-.41c2.93 1.19 5 4.06 5 7.41 0 2.08-.8 3.97-2.1 5.39z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003eWorldwide Delivery\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M21.41 11.58l-9-9C12.05 2.22 11.55 2 11 2H4c-1.1 0-2 .9-2 2v7c0 .55.22 1.05.59 1.42l9 9c.36.36.86.58 1.41.58.55 0 1.05-.22 1.41-.59l7-7c.37-.36.59-.86.59-1.41 0-.55-.23-1.06-.59-1.42zM5.5 8.25c-.69 0-1.25-.56-1.25-1.25s.56-1.25 1.25-1.25 1.25.56 1.25 1.25-.56 1.25-1.25 1.25z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003ePrice Beat Guarantee\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How do I know this is the right window?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Check the part number on the old window's packaging or your parts list, or measure the diameter and thickness. They must match the size shown.\"}}, {\"@type\": \"Question\", \"name\": \"Is it a genuine part?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. It is an aftermarket window made to the same size. The OEM part number is shown so you can match the window you are replacing.\"}}, {\"@type\": \"Question\", \"name\": \"1 pack, 5 pack or 10 pack?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is the same window in each. The 10 pack has the lowest price per window.\"}}, {\"@type\": \"Question\", \"name\": \"How should I handle it?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Hold it by the edge with clean gloves and keep it in its case until fitting. Clean only with lens tissue and optical alcohol.\"}}]}]}\u003c\/script\u003e","brand":"Spare Part Mart","offers":[{"title":"1 Pack","offer_id":67557099307308,"sku":"SPM-LAS-2139-P1","price":6.24,"currency_code":"USD","in_stock":true},{"title":"5 Pack","offer_id":67557099340076,"sku":"SPM-LAS-2139-P5","price":28.85,"currency_code":"USD","in_stock":true},{"title":"10 Pack","offer_id":67557099372844,"sku":"SPM-LAS-2139-P10","price":53.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/9152\/6700\/files\/spm_0_59cd6aca-73b4-42ef-8f6f-3ff38bb25bc1.jpg?v=1790912639"},{"product_id":"boci-p-s-b0021-aftermarket-protective-window-d34-x-5-mm-15-kw","title":"BOCI P.S.B0021 Aftermarket Protective Window, D34 x 5 mm, 15 kW","description":"\u003cdiv style=\"font-family:Roboto,sans-serif;color:#1a1a1a;line-height:1.6\"\u003e\n\u003cstyle\u003e@import url('https:\/\/fonts.googleapis.com\/css2?family=Roboto+Condensed:wght@700\u0026family=Roboto:wght@400;700;900\u0026display=swap');.spm-c{border:1px solid #d1d1d1;background:#fff;margin-bottom:25px;overflow:hidden}.spm-h{padding:15px 20px;background:#ffce02;border-bottom:1px solid #d1d1d1;font-weight:900;text-transform:uppercase;font-size:16px;color:#000;letter-spacing:.05em;font-family:'Roboto Condensed',sans-serif}.spm-t{width:100%;border-collapse:collapse;font-size:15px}.spm-t th{padding:12px 10px;text-align:left;background:#f4f4f4;font-size:12px;text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid #d1d1d1;color:#000}.spm-t td{padding:11px 10px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}.spmL{font-weight:700;color:#333;background:#fcfcfc;width:38%}.spm-sub{display:block;color:#777;font-size:12.5px;margin-top:2px}.spm-chip{display:inline-block;margin:0 8px 8px 0;padding:6px 12px;border:1px solid #d1d1d1;background:#fcfcfc;font-size:14px;font-weight:700;color:#000}.spm-h2{font-family:'Roboto Condensed',sans-serif;font-size:24px;font-weight:900;color:#000;text-transform:uppercase;margin:40px 0 20px;letter-spacing:.05em;border-bottom:3px solid #ffce02;padding-bottom:15px}.spm-p{font-size:16px;line-height:1.8;margin:0 0 18px}@media(max-width:700px){.spmL{width:auto}}\u003c\/style\u003e\n\u003cp class=\"spm-p\"\u003eAftermarket protective window for BOCI laser cutting heads. Replaces BOCI P.S.B0021. Size D34 x 5 mm, 15 kW. Fused silica, anti reflection coated on both faces for 1064 nm fiber lasers.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003eFits BLT310, BLT420, BLT421, BLT441, BLT461, BLT481, BLT641. Sold in packs of 1, 5 or 10.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eTechnical Properties \u0026amp; Sizes\u003c\/h2\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eSpecifications\u003c\/div\u003e\n\u003ctable class=\"spm-t\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eReplaces\u003c\/td\u003e\n\u003ctd\u003eBOCI P.S.B0021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eSize\u003c\/td\u003e\n\u003ctd\u003eD34 x 5 mm, 15 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003ePower Rating\u003c\/td\u003e\n\u003ctd\u003e15 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eFused silica, AR coated both faces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003ePack Options\u003c\/td\u003e\n\u003ctd\u003e1 pack, 5 pack, 10 pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eCompatibility\u003c\/div\u003e\n\u003cdiv style=\"padding:20px\"\u003e\n\u003cp style=\"margin:0 0 10px;font-weight:700;color:#333\"\u003eBOCI heads\u003c\/p\u003e\n\u003cdiv\u003e\n\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt310-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT310\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt420-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT420\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt421-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT421\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt441-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT441\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt461-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT461\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt481-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT481\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt641-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT641\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:13px;color:#666;margin:0 0 18px\"\u003eMatch the window size and part number in your head.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eFind Your Size by Part Number\u003c\/div\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable class=\"spm-t\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003cth\u003eBOCI Part No.\u003cspan class=\"spm-sub\"\u003e(SPM Part No.)\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eD34 x 5 mm, 15 kW\u003c\/td\u003e\n\u003ctd\u003eD34 x 5 mm, 15 kW\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eP.S.B0021\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2140)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003eBLT310, BLT420, BLT421, BLT441, BLT461, BLT481, BLT641\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"spm-h2\"\u003eApplications \u0026amp; Use Cases\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eRoutine changes\u003c\/strong\u003e\u003cbr\u003eReplace the window when it shows spatter, pitting or burn marks. A dirty window absorbs power and can crack.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eProtecting the focusing lens\u003c\/strong\u003e\u003cbr\u003eThe window keeps spatter and fume off the focusing lens above it.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eLoss of cutting power\u003c\/strong\u003e\u003cbr\u003eIf piercing slows or the kerf widens, check the protective window before changing cutting parameters.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003ePrice Beat Guarantee\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003eFound this part cheaper elsewhere? Send us the listing and we will beat it under our \u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"color:#000;text-decoration:underline\"\u003ePrice Beat Guarantee\u003c\/a\u003e. Every order is also covered by our \u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"color:#000;text-decoration:underline\"\u003e30 day money back guarantee\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow do I know this is the right window?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eCheck the part number on the old window's packaging or your parts list, or measure the diameter and thickness. They must match the size shown.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eIs it a genuine part?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eNo. It is an aftermarket window made to the same size. The OEM part number is shown so you can match the window you are replacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003e1 pack, 5 pack or 10 pack?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eIt is the same window in each. The 10 pack has the lowest price per window.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow should I handle it?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eHold it by the edge with clean gloves and keep it in its case until fitting. Clean only with lens tissue and optical alcohol.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top:50px;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#d1d1d1;border:1px solid #d1d1d1;margin-bottom:20px\" class=\"spm-trust\"\u003e\n\u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4zm-2 16l-4-4 1.41-1.41L10 14.17l6.59-6.59L18 9l-8 8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003e30-Day Money Back Guarantee\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/delivery-information\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-1 17.93c-3.95-.49-7-3.85-7-7.93 0-.62.08-1.21.21-1.79L9 15v1c0 1.1.9 2 2 2v1.93zm6.9-2.54c-.26-.81-1-1.39-1.9-1.39h-1v-3c0-.55-.45-1-1-1H8v-2h2c.55 0 1-.45 1-1V7h2c1.1 0 2-.9 2-2v-.41c2.93 1.19 5 4.06 5 7.41 0 2.08-.8 3.97-2.1 5.39z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003eWorldwide Delivery\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M21.41 11.58l-9-9C12.05 2.22 11.55 2 11 2H4c-1.1 0-2 .9-2 2v7c0 .55.22 1.05.59 1.42l9 9c.36.36.86.58 1.41.58.55 0 1.05-.22 1.41-.59l7-7c.37-.36.59-.86.59-1.41 0-.55-.23-1.06-.59-1.42zM5.5 8.25c-.69 0-1.25-.56-1.25-1.25s.56-1.25 1.25-1.25 1.25.56 1.25 1.25-.56 1.25-1.25 1.25z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003ePrice Beat Guarantee\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How do I know this is the right window?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Check the part number on the old window's packaging or your parts list, or measure the diameter and thickness. They must match the size shown.\"}}, {\"@type\": \"Question\", \"name\": \"Is it a genuine part?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. It is an aftermarket window made to the same size. The OEM part number is shown so you can match the window you are replacing.\"}}, {\"@type\": \"Question\", \"name\": \"1 pack, 5 pack or 10 pack?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is the same window in each. The 10 pack has the lowest price per window.\"}}, {\"@type\": \"Question\", \"name\": \"How should I handle it?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Hold it by the edge with clean gloves and keep it in its case until fitting. Clean only with lens tissue and optical alcohol.\"}}]}]}\u003c\/script\u003e","brand":"Spare Part Mart","offers":[{"title":"1 Pack","offer_id":67557099405612,"sku":"SPM-LAS-2140-P1","price":16.2,"currency_code":"USD","in_stock":true},{"title":"5 Pack","offer_id":67557099438380,"sku":"SPM-LAS-2140-P5","price":74.9,"currency_code":"USD","in_stock":true},{"title":"10 Pack","offer_id":67557099471148,"sku":"SPM-LAS-2140-P10","price":137.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/9152\/6700\/files\/spm_0_98067e78-28d7-450d-bff5-7b9486d5ea5a.jpg?v=1790912643"},{"product_id":"boci-dp-v-p0004aa-aftermarket-protective-window-d34-x-5-mm-20-kw","title":"BOCI DP.V.P0004AA Aftermarket Protective Window, D34 x 5 mm, 20 kW","description":"\u003cdiv style=\"font-family:Roboto,sans-serif;color:#1a1a1a;line-height:1.6\"\u003e\n\u003cstyle\u003e@import url('https:\/\/fonts.googleapis.com\/css2?family=Roboto+Condensed:wght@700\u0026family=Roboto:wght@400;700;900\u0026display=swap');.spm-c{border:1px solid #d1d1d1;background:#fff;margin-bottom:25px;overflow:hidden}.spm-h{padding:15px 20px;background:#ffce02;border-bottom:1px solid #d1d1d1;font-weight:900;text-transform:uppercase;font-size:16px;color:#000;letter-spacing:.05em;font-family:'Roboto Condensed',sans-serif}.spm-t{width:100%;border-collapse:collapse;font-size:15px}.spm-t th{padding:12px 10px;text-align:left;background:#f4f4f4;font-size:12px;text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid #d1d1d1;color:#000}.spm-t td{padding:11px 10px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}.spmL{font-weight:700;color:#333;background:#fcfcfc;width:38%}.spm-sub{display:block;color:#777;font-size:12.5px;margin-top:2px}.spm-chip{display:inline-block;margin:0 8px 8px 0;padding:6px 12px;border:1px solid #d1d1d1;background:#fcfcfc;font-size:14px;font-weight:700;color:#000}.spm-h2{font-family:'Roboto Condensed',sans-serif;font-size:24px;font-weight:900;color:#000;text-transform:uppercase;margin:40px 0 20px;letter-spacing:.05em;border-bottom:3px solid #ffce02;padding-bottom:15px}.spm-p{font-size:16px;line-height:1.8;margin:0 0 18px}@media(max-width:700px){.spmL{width:auto}}\u003c\/style\u003e\n\u003cp class=\"spm-p\"\u003eAftermarket protective window for BOCI laser cutting heads. Replaces BOCI DP.V.P0004AA. Size D34 x 5 mm, 20 kW. Fused silica, anti reflection coated on both faces for 1064 nm fiber lasers.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003eFits BLT310, BLT420, BLT421, BLT441, BLT461, BLT481, BLT641. Sold in packs of 1, 5 or 10.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eTechnical Properties \u0026amp; Sizes\u003c\/h2\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eSpecifications\u003c\/div\u003e\n\u003ctable class=\"spm-t\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eReplaces\u003c\/td\u003e\n\u003ctd\u003eBOCI DP.V.P0004AA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eSize\u003c\/td\u003e\n\u003ctd\u003eD34 x 5 mm, 20 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003ePower Rating\u003c\/td\u003e\n\u003ctd\u003e20 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eFused silica, AR coated both faces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003ePack Options\u003c\/td\u003e\n\u003ctd\u003e1 pack, 5 pack, 10 pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eCompatibility\u003c\/div\u003e\n\u003cdiv style=\"padding:20px\"\u003e\n\u003cp style=\"margin:0 0 10px;font-weight:700;color:#333\"\u003eBOCI heads\u003c\/p\u003e\n\u003cdiv\u003e\n\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt310-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT310\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt420-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT420\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt421-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT421\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt441-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT441\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt461-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT461\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt481-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT481\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt641-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT641\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:13px;color:#666;margin:0 0 18px\"\u003eMatch the window size and part number in your head.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eFind Your Size by Part Number\u003c\/div\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable class=\"spm-t\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003cth\u003eBOCI Part No.\u003cspan class=\"spm-sub\"\u003e(SPM Part No.)\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eD34 x 5 mm, 20 kW\u003c\/td\u003e\n\u003ctd\u003eD34 x 5 mm, 20 kW\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eDP.V.P0004AA\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2141)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003eBLT310, BLT420, BLT421, BLT441, BLT461, BLT481, BLT641\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"spm-h2\"\u003eApplications \u0026amp; Use Cases\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eRoutine changes\u003c\/strong\u003e\u003cbr\u003eReplace the window when it shows spatter, pitting or burn marks. A dirty window absorbs power and can crack.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eProtecting the focusing lens\u003c\/strong\u003e\u003cbr\u003eThe window keeps spatter and fume off the focusing lens above it.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eLoss of cutting power\u003c\/strong\u003e\u003cbr\u003eIf piercing slows or the kerf widens, check the protective window before changing cutting parameters.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003ePrice Beat Guarantee\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003eFound this part cheaper elsewhere? Send us the listing and we will beat it under our \u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"color:#000;text-decoration:underline\"\u003ePrice Beat Guarantee\u003c\/a\u003e. Every order is also covered by our \u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"color:#000;text-decoration:underline\"\u003e30 day money back guarantee\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow do I know this is the right window?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eCheck the part number on the old window's packaging or your parts list, or measure the diameter and thickness. They must match the size shown.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eIs it a genuine part?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eNo. It is an aftermarket window made to the same size. The OEM part number is shown so you can match the window you are replacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003e1 pack, 5 pack or 10 pack?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eIt is the same window in each. The 10 pack has the lowest price per window.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow should I handle it?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eHold it by the edge with clean gloves and keep it in its case until fitting. Clean only with lens tissue and optical alcohol.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top:50px;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#d1d1d1;border:1px solid #d1d1d1;margin-bottom:20px\" class=\"spm-trust\"\u003e\n\u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4zm-2 16l-4-4 1.41-1.41L10 14.17l6.59-6.59L18 9l-8 8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003e30-Day Money Back Guarantee\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/delivery-information\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-1 17.93c-3.95-.49-7-3.85-7-7.93 0-.62.08-1.21.21-1.79L9 15v1c0 1.1.9 2 2 2v1.93zm6.9-2.54c-.26-.81-1-1.39-1.9-1.39h-1v-3c0-.55-.45-1-1-1H8v-2h2c.55 0 1-.45 1-1V7h2c1.1 0 2-.9 2-2v-.41c2.93 1.19 5 4.06 5 7.41 0 2.08-.8 3.97-2.1 5.39z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003eWorldwide Delivery\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M21.41 11.58l-9-9C12.05 2.22 11.55 2 11 2H4c-1.1 0-2 .9-2 2v7c0 .55.22 1.05.59 1.42l9 9c.36.36.86.58 1.41.58.55 0 1.05-.22 1.41-.59l7-7c.37-.36.59-.86.59-1.41 0-.55-.23-1.06-.59-1.42zM5.5 8.25c-.69 0-1.25-.56-1.25-1.25s.56-1.25 1.25-1.25 1.25.56 1.25 1.25-.56 1.25-1.25 1.25z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003ePrice Beat Guarantee\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How do I know this is the right window?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Check the part number on the old window's packaging or your parts list, or measure the diameter and thickness. They must match the size shown.\"}}, {\"@type\": \"Question\", \"name\": \"Is it a genuine part?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. It is an aftermarket window made to the same size. The OEM part number is shown so you can match the window you are replacing.\"}}, {\"@type\": \"Question\", \"name\": \"1 pack, 5 pack or 10 pack?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is the same window in each. The 10 pack has the lowest price per window.\"}}, {\"@type\": \"Question\", \"name\": \"How should I handle it?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Hold it by the edge with clean gloves and keep it in its case until fitting. Clean only with lens tissue and optical alcohol.\"}}]}]}\u003c\/script\u003e","brand":"Spare Part Mart","offers":[{"title":"1 Pack","offer_id":67557099503916,"sku":"SPM-LAS-2141-P1","price":23.09,"currency_code":"USD","in_stock":true},{"title":"5 Pack","offer_id":67557099536684,"sku":"SPM-LAS-2141-P5","price":106.8,"currency_code":"USD","in_stock":true},{"title":"10 Pack","offer_id":67557099569452,"sku":"SPM-LAS-2141-P10","price":196.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/9152\/6700\/files\/spm_0_73fcf762-9aa2-4d48-b5b0-d10ab04a5866.jpg?v=1790912646"},{"product_id":"boci-dp-v-p0005aa-aftermarket-protective-window-d34-x-5-mm-30-kw","title":"BOCI DP.V.P0005AA Aftermarket Protective Window, D34 x 5 mm, 30 kW","description":"\u003cdiv style=\"font-family:Roboto,sans-serif;color:#1a1a1a;line-height:1.6\"\u003e\n\u003cstyle\u003e@import url('https:\/\/fonts.googleapis.com\/css2?family=Roboto+Condensed:wght@700\u0026family=Roboto:wght@400;700;900\u0026display=swap');.spm-c{border:1px solid #d1d1d1;background:#fff;margin-bottom:25px;overflow:hidden}.spm-h{padding:15px 20px;background:#ffce02;border-bottom:1px solid #d1d1d1;font-weight:900;text-transform:uppercase;font-size:16px;color:#000;letter-spacing:.05em;font-family:'Roboto Condensed',sans-serif}.spm-t{width:100%;border-collapse:collapse;font-size:15px}.spm-t th{padding:12px 10px;text-align:left;background:#f4f4f4;font-size:12px;text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid #d1d1d1;color:#000}.spm-t td{padding:11px 10px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}.spmL{font-weight:700;color:#333;background:#fcfcfc;width:38%}.spm-sub{display:block;color:#777;font-size:12.5px;margin-top:2px}.spm-chip{display:inline-block;margin:0 8px 8px 0;padding:6px 12px;border:1px solid #d1d1d1;background:#fcfcfc;font-size:14px;font-weight:700;color:#000}.spm-h2{font-family:'Roboto Condensed',sans-serif;font-size:24px;font-weight:900;color:#000;text-transform:uppercase;margin:40px 0 20px;letter-spacing:.05em;border-bottom:3px solid #ffce02;padding-bottom:15px}.spm-p{font-size:16px;line-height:1.8;margin:0 0 18px}@media(max-width:700px){.spmL{width:auto}}\u003c\/style\u003e\n\u003cp class=\"spm-p\"\u003eAftermarket protective window for BOCI laser cutting heads. Replaces BOCI DP.V.P0005AA. Size D34 x 5 mm, 30 kW. Fused silica, anti reflection coated on both faces for 1064 nm fiber lasers.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003eFits BLT310, BLT420, BLT421, BLT441, BLT461, BLT481, BLT641. Sold in packs of 1, 5 or 10.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eTechnical Properties \u0026amp; Sizes\u003c\/h2\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eSpecifications\u003c\/div\u003e\n\u003ctable class=\"spm-t\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eReplaces\u003c\/td\u003e\n\u003ctd\u003eBOCI DP.V.P0005AA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eSize\u003c\/td\u003e\n\u003ctd\u003eD34 x 5 mm, 30 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003ePower Rating\u003c\/td\u003e\n\u003ctd\u003e30 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eFused silica, AR coated both faces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003ePack Options\u003c\/td\u003e\n\u003ctd\u003e1 pack, 5 pack, 10 pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eCompatibility\u003c\/div\u003e\n\u003cdiv style=\"padding:20px\"\u003e\n\u003cp style=\"margin:0 0 10px;font-weight:700;color:#333\"\u003eBOCI heads\u003c\/p\u003e\n\u003cdiv\u003e\n\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt310-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT310\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt420-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT420\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt421-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT421\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt441-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT441\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt461-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT461\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt481-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT481\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt641-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT641\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:13px;color:#666;margin:0 0 18px\"\u003eMatch the window size and part number in your head.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eFind Your Size by Part Number\u003c\/div\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable class=\"spm-t\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003cth\u003eBOCI Part No.\u003cspan class=\"spm-sub\"\u003e(SPM Part No.)\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eD34 x 5 mm, 30 kW\u003c\/td\u003e\n\u003ctd\u003eD34 x 5 mm, 30 kW\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eDP.V.P0005AA\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2142)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003eBLT310, BLT420, BLT421, BLT441, BLT461, BLT481, BLT641\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"spm-h2\"\u003eApplications \u0026amp; Use Cases\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eRoutine changes\u003c\/strong\u003e\u003cbr\u003eReplace the window when it shows spatter, pitting or burn marks. A dirty window absorbs power and can crack.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eProtecting the focusing lens\u003c\/strong\u003e\u003cbr\u003eThe window keeps spatter and fume off the focusing lens above it.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eLoss of cutting power\u003c\/strong\u003e\u003cbr\u003eIf piercing slows or the kerf widens, check the protective window before changing cutting parameters.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003ePrice Beat Guarantee\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003eFound this part cheaper elsewhere? Send us the listing and we will beat it under our \u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"color:#000;text-decoration:underline\"\u003ePrice Beat Guarantee\u003c\/a\u003e. Every order is also covered by our \u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"color:#000;text-decoration:underline\"\u003e30 day money back guarantee\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow do I know this is the right window?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eCheck the part number on the old window's packaging or your parts list, or measure the diameter and thickness. They must match the size shown.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eIs it a genuine part?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eNo. It is an aftermarket window made to the same size. The OEM part number is shown so you can match the window you are replacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003e1 pack, 5 pack or 10 pack?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eIt is the same window in each. The 10 pack has the lowest price per window.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow should I handle it?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eHold it by the edge with clean gloves and keep it in its case until fitting. Clean only with lens tissue and optical alcohol.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top:50px;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#d1d1d1;border:1px solid #d1d1d1;margin-bottom:20px\" class=\"spm-trust\"\u003e\n\u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4zm-2 16l-4-4 1.41-1.41L10 14.17l6.59-6.59L18 9l-8 8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003e30-Day Money Back Guarantee\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/delivery-information\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-1 17.93c-3.95-.49-7-3.85-7-7.93 0-.62.08-1.21.21-1.79L9 15v1c0 1.1.9 2 2 2v1.93zm6.9-2.54c-.26-.81-1-1.39-1.9-1.39h-1v-3c0-.55-.45-1-1-1H8v-2h2c.55 0 1-.45 1-1V7h2c1.1 0 2-.9 2-2v-.41c2.93 1.19 5 4.06 5 7.41 0 2.08-.8 3.97-2.1 5.39z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003eWorldwide Delivery\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M21.41 11.58l-9-9C12.05 2.22 11.55 2 11 2H4c-1.1 0-2 .9-2 2v7c0 .55.22 1.05.59 1.42l9 9c.36.36.86.58 1.41.58.55 0 1.05-.22 1.41-.59l7-7c.37-.36.59-.86.59-1.41 0-.55-.23-1.06-.59-1.42zM5.5 8.25c-.69 0-1.25-.56-1.25-1.25s.56-1.25 1.25-1.25 1.25.56 1.25 1.25-.56 1.25-1.25 1.25z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003ePrice Beat Guarantee\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How do I know this is the right window?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Check the part number on the old window's packaging or your parts list, or measure the diameter and thickness. They must match the size shown.\"}}, {\"@type\": \"Question\", \"name\": \"Is it a genuine part?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. It is an aftermarket window made to the same size. The OEM part number is shown so you can match the window you are replacing.\"}}, {\"@type\": \"Question\", \"name\": \"1 pack, 5 pack or 10 pack?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is the same window in each. The 10 pack has the lowest price per window.\"}}, {\"@type\": \"Question\", \"name\": \"How should I handle it?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Hold it by the edge with clean gloves and keep it in its case until fitting. Clean only with lens tissue and optical alcohol.\"}}]}]}\u003c\/script\u003e","brand":"Spare Part Mart","offers":[{"title":"1 Pack","offer_id":67557099602220,"sku":"SPM-LAS-2142-P1","price":27.08,"currency_code":"USD","in_stock":true},{"title":"5 Pack","offer_id":67557099634988,"sku":"SPM-LAS-2142-P5","price":125.25,"currency_code":"USD","in_stock":true},{"title":"10 Pack","offer_id":67557099667756,"sku":"SPM-LAS-2142-P10","price":230.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/9152\/6700\/files\/spm_0_6b5b6d5c-e2a0-45a9-aef7-d21cfed112c0.jpg?v=1790912649"},{"product_id":"boci-dp-v-p0012aa-aftermarket-protective-window-d34-x-5-mm-40-kw","title":"BOCI DP.V.P0012AA Aftermarket Protective Window, D34 x 5 mm, 40 kW","description":"\u003cdiv style=\"font-family:Roboto,sans-serif;color:#1a1a1a;line-height:1.6\"\u003e\n\u003cstyle\u003e@import url('https:\/\/fonts.googleapis.com\/css2?family=Roboto+Condensed:wght@700\u0026family=Roboto:wght@400;700;900\u0026display=swap');.spm-c{border:1px solid #d1d1d1;background:#fff;margin-bottom:25px;overflow:hidden}.spm-h{padding:15px 20px;background:#ffce02;border-bottom:1px solid #d1d1d1;font-weight:900;text-transform:uppercase;font-size:16px;color:#000;letter-spacing:.05em;font-family:'Roboto Condensed',sans-serif}.spm-t{width:100%;border-collapse:collapse;font-size:15px}.spm-t th{padding:12px 10px;text-align:left;background:#f4f4f4;font-size:12px;text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid #d1d1d1;color:#000}.spm-t td{padding:11px 10px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}.spmL{font-weight:700;color:#333;background:#fcfcfc;width:38%}.spm-sub{display:block;color:#777;font-size:12.5px;margin-top:2px}.spm-chip{display:inline-block;margin:0 8px 8px 0;padding:6px 12px;border:1px solid #d1d1d1;background:#fcfcfc;font-size:14px;font-weight:700;color:#000}.spm-h2{font-family:'Roboto Condensed',sans-serif;font-size:24px;font-weight:900;color:#000;text-transform:uppercase;margin:40px 0 20px;letter-spacing:.05em;border-bottom:3px solid #ffce02;padding-bottom:15px}.spm-p{font-size:16px;line-height:1.8;margin:0 0 18px}@media(max-width:700px){.spmL{width:auto}}\u003c\/style\u003e\n\u003cp class=\"spm-p\"\u003eAftermarket protective window for BOCI laser cutting heads. Replaces BOCI DP.V.P0012AA. Size D34 x 5 mm, 40 kW. Fused silica, anti reflection coated on both faces for 1064 nm fiber lasers.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003eFits BLT310, BLT420, BLT421, BLT441, BLT461, BLT481, BLT641. Sold in packs of 1, 5 or 10.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eTechnical Properties \u0026amp; Sizes\u003c\/h2\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eSpecifications\u003c\/div\u003e\n\u003ctable class=\"spm-t\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eReplaces\u003c\/td\u003e\n\u003ctd\u003eBOCI DP.V.P0012AA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eSize\u003c\/td\u003e\n\u003ctd\u003eD34 x 5 mm, 40 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003ePower Rating\u003c\/td\u003e\n\u003ctd\u003e40 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eFused silica, AR coated both faces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003ePack Options\u003c\/td\u003e\n\u003ctd\u003e1 pack, 5 pack, 10 pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eCompatibility\u003c\/div\u003e\n\u003cdiv style=\"padding:20px\"\u003e\n\u003cp style=\"margin:0 0 10px;font-weight:700;color:#333\"\u003eBOCI heads\u003c\/p\u003e\n\u003cdiv\u003e\n\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt310-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT310\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt420-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT420\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt421-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT421\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt441-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT441\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt461-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT461\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt481-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT481\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/boci-blt641-laser-head-parts\" style=\"text-decoration:none\"\u003eBLT641\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:13px;color:#666;margin:0 0 18px\"\u003eMatch the window size and part number in your head.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eFind Your Size by Part Number\u003c\/div\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable class=\"spm-t\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003cth\u003eBOCI Part No.\u003cspan class=\"spm-sub\"\u003e(SPM Part No.)\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eD34 x 5 mm, 40 kW\u003c\/td\u003e\n\u003ctd\u003eD34 x 5 mm, 40 kW\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eDP.V.P0012AA\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2143)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003eBLT310, BLT420, BLT421, BLT441, BLT461, BLT481, BLT641\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"spm-h2\"\u003eApplications \u0026amp; Use Cases\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eRoutine changes\u003c\/strong\u003e\u003cbr\u003eReplace the window when it shows spatter, pitting or burn marks. A dirty window absorbs power and can crack.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eProtecting the focusing lens\u003c\/strong\u003e\u003cbr\u003eThe window keeps spatter and fume off the focusing lens above it.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eLoss of cutting power\u003c\/strong\u003e\u003cbr\u003eIf piercing slows or the kerf widens, check the protective window before changing cutting parameters.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003ePrice Beat Guarantee\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003eFound this part cheaper elsewhere? Send us the listing and we will beat it under our \u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"color:#000;text-decoration:underline\"\u003ePrice Beat Guarantee\u003c\/a\u003e. Every order is also covered by our \u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"color:#000;text-decoration:underline\"\u003e30 day money back guarantee\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow do I know this is the right window?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eCheck the part number on the old window's packaging or your parts list, or measure the diameter and thickness. They must match the size shown.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eIs it a genuine part?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eNo. It is an aftermarket window made to the same size. The OEM part number is shown so you can match the window you are replacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003e1 pack, 5 pack or 10 pack?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eIt is the same window in each. The 10 pack has the lowest price per window.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow should I handle it?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eHold it by the edge with clean gloves and keep it in its case until fitting. Clean only with lens tissue and optical alcohol.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top:50px;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#d1d1d1;border:1px solid #d1d1d1;margin-bottom:20px\" class=\"spm-trust\"\u003e\n\u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4zm-2 16l-4-4 1.41-1.41L10 14.17l6.59-6.59L18 9l-8 8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003e30-Day Money Back Guarantee\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/delivery-information\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-1 17.93c-3.95-.49-7-3.85-7-7.93 0-.62.08-1.21.21-1.79L9 15v1c0 1.1.9 2 2 2v1.93zm6.9-2.54c-.26-.81-1-1.39-1.9-1.39h-1v-3c0-.55-.45-1-1-1H8v-2h2c.55 0 1-.45 1-1V7h2c1.1 0 2-.9 2-2v-.41c2.93 1.19 5 4.06 5 7.41 0 2.08-.8 3.97-2.1 5.39z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003eWorldwide Delivery\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M21.41 11.58l-9-9C12.05 2.22 11.55 2 11 2H4c-1.1 0-2 .9-2 2v7c0 .55.22 1.05.59 1.42l9 9c.36.36.86.58 1.41.58.55 0 1.05-.22 1.41-.59l7-7c.37-.36.59-.86.59-1.41 0-.55-.23-1.06-.59-1.42zM5.5 8.25c-.69 0-1.25-.56-1.25-1.25s.56-1.25 1.25-1.25 1.25.56 1.25 1.25-.56 1.25-1.25 1.25z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003ePrice Beat Guarantee\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How do I know this is the right window?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Check the part number on the old window's packaging or your parts list, or measure the diameter and thickness. They must match the size shown.\"}}, {\"@type\": \"Question\", \"name\": \"Is it a genuine part?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. It is an aftermarket window made to the same size. The OEM part number is shown so you can match the window you are replacing.\"}}, {\"@type\": \"Question\", \"name\": \"1 pack, 5 pack or 10 pack?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is the same window in each. The 10 pack has the lowest price per window.\"}}, {\"@type\": \"Question\", \"name\": \"How should I handle it?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Hold it by the edge with clean gloves and keep it in its case until fitting. Clean only with lens tissue and optical alcohol.\"}}]}]}\u003c\/script\u003e","brand":"Spare Part Mart","offers":[{"title":"1 Pack","offer_id":67557099700524,"sku":"SPM-LAS-2143-P1","price":32.35,"currency_code":"USD","in_stock":true},{"title":"5 Pack","offer_id":67557099733292,"sku":"SPM-LAS-2143-P5","price":149.65,"currency_code":"USD","in_stock":true},{"title":"10 Pack","offer_id":67557099766060,"sku":"SPM-LAS-2143-P10","price":275.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/9152\/6700\/files\/spm_0_618c2596-ec27-4615-b0b5-3e840db7b6c9.jpg?v=1790912652"}],"url":"https:\/\/sparepartmart.co\/collections\/boci-blt461-laser-head-parts.oembed","provider":"Spare Part Mart","version":"1.0","type":"link"}