| WZN1502 15 mm Dia. Zinc Selenide Standard Round Window; t=2mm Uncoated | Optics | Window | Flat Window | Knight Optical | ZnSe | Circular |
| WZN1312 13 mm Dia. Zinc Sulphide Multispectral (clear) Round Window; t=2mm Uncoated | Optics | Window | Flat Window | Knight Optical | ZnS | Circular |
| WZN1301 13 mm Dia. Zinc Selenide Standard Round Window; t=2mm Uncoated | Optics | Window | Flat Window | Knight Optical | ZnSe | Circular |
| WZN1311 13 mm Dia. Zinc Sulphide Multispectral (clear) Round Window; t=1mm Uncoated | Optics | Window | Flat Window | Knight Optical | ZnS | Circular |
| WZN1310 13 mm Dia. Zinc Selenide Standard Round Window; t=1mm Uncoated | Optics | Window | Flat Window | Knight Optical | ZnSe | Circular |
| WZN1302 12.7 mm Dia. Zinc Selenide Standard Round Window; t=2mm Uncoated | Optics | Window | Flat Window | Knight Optical | ZnSe | Circular |
| WZN1300 12 mm Dia. Zinc Selenide Standard Round Window; t=2mm Uncoated | Optics | Window | Flat Window | Knight Optical | ZnSe | Circular |
| WZN1211 12 mm Dia. Zinc Sulphide Multispectral (clear) Round Window; t=1mm Uncoated | Optics | Window | Flat Window | Knight Optical | ZnS | Circular |
| WZN1201 12 mm Dia. Zinc Selenide Standard Round Window; t=1mm Uncoated | Optics | Window | Flat Window | Knight Optical | ZnSe | Circular |
| WZN1011 10 mm Dia. Zinc Sulphide Multispectral (clear) Round Window; t=1mm Uncoated | Optics | Window | Flat Window | Knight Optical | ZnS | Circular |
| WZN0902 9 mm Dia. Zinc Selenide Standard Round Window; t=2mm Uncoated | Optics | Window | Flat Window | Knight Optical | ZnSe | Circular |
| PW1-2506M-C 25 mm Dia. N-BK7 Laser Grade Optical Window; t=6mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | N-BK7 | Circular |
| PW1-0525-UV 12.7 mm Dia. UVFS Laser Grade Optical Window; t=6.35mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| PW1-2025-UV 50.8 mm Dia. UVFS Laser Grade Optical Window; t=6.35mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| PW1-0504-UV 12.7 mm Dia. UVFS Laser Grade Optical Window; t=1mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| PW1-0512-UV 12.7 mm Dia. UVFS Laser Grade Optical Window; t=3.18mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| PW1-2037-UV 50.8 mm Dia. UVFS Laser Grade Optical Window; t=9.53mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| PW1-5010M-UV 50 mm Dia. UVFS Laser Grade Optical Window; t=10mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| PW1-1008-UV 25.4 mm Dia. UVFS Laser Grade Optical Window; t=2mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| PW1-2506M-UV 25 mm Dia. UVFS Laser Grade Optical Window; t=6mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| RW-40.0-30.0-5.00-C 40 x 30 mm N-BK7 Laser Grade Optical Window; t=5mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | N-BK7 | Rectangular |
| RW-28.6-14.3-3.18-C 28.6 x 14.3 mm N-BK7 Laser Grade Optical Window; t=3.18mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | N-BK7 | Rectangular |
| IF-1025-C 25.4 mm Dia. N-BK7 Interferometer Laser Grade Flat Window; t=6.35mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | N-BK7 | Circular |
| IF-2037-UV 50.8 mm Dia. UVFS Interferometer Laser Grade Flat Window; t=9.53mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| IF-0725-UV 19.1 mm Dia. UVFS Interferometer Laser Grade Flat Window; t=6.35mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| IF-0512-UV 12.7 mm Dia. UVFS Interferometer Laser Grade Flat Window; t=3.18mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| CaF2-w-6x1 6 mm Dia. CaF2 Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| LW-1-1037-UV 25.4 mm Dia. UVFS Large Laser Grade Wedge Window; t=9.53mm Uncoated | Optics | Window | Wedge Window | CVI Laser Optics | UVFS | Circular |
| LW-3-2037-C 50.8 mm Dia. N-BK7 Large Laser Grade Wedge Window; t=9.53mm Uncoated | Optics | Window | Wedge Window | CVI Laser Optics | N-BK7 | Circular |
| LW-3-1037-C 25.4 mm Dia. N-BK7 Large Laser Grade Wedge Window; t=9.53mm Uncoated | Optics | Window | Wedge Window | CVI Laser Optics | N-BK7 | Circular |
| LW-1-2037-C 50.8 mm Dia. N-BK7 Large Laser Grade Wedge Window; t=9.53mm Uncoated | Optics | Window | Wedge Window | CVI Laser Optics | N-BK7 | Circular |
| CAW4050-5 50.8 mm Dia. CaF2 Round Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | Union Optic | CaF2 | Circular |
| CAW4038-3 38.1 mm Dia. CaF2 Round Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | Union Optic | CaF2 | Circular |
| CAW4025-5 25.4 mm Dia. CaF2 Round Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | Union Optic | CaF2 | Circular |
| CAW4025-3 25.4 mm Dia. CaF2 Round Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | Union Optic | CaF2 | Circular |
| CAW4020-5 20 mm Dia. CaF2 Round Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | Union Optic | CaF2 | Circular |
| CAW4012-3 12.7 mm Dia. CaF2 Round Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | Union Optic | CaF2 | Circular |
| CAW4012-1 12.7 mm Dia. CaF2 Round Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | Union Optic | CaF2 | Circular |
| 4002010220 50.8 mm Dia. UVFS Round Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| 4002010217 20 mm Dia. UVFS Round Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| 4002010213 50.8 mm Dia. UVFS Round Flat Window; t=10 mm Uncoated | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| 4002010212 20 mm Dia. N-BK7 Round Flat Window; t=6.35 mm Uncoated | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| 4002010140 15 mm Dia. N-BK7 Round Flat Window; t=1.04 mm Uncoated | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| 4002010101 16 mm Dia. N-BK7 Round Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| 4002010100 38.1 mm Dia. N-BK7 Round Flat Window; t=6.35 mm Uncoated | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| 4002010073 25.4 mm Dia. N-BK7 Round Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| 4002010034 20 mm Dia. N-BK7 Round Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| 4002010028 25.4 mm Dia. N-BK7 Round Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| 4002010026 12.7 mm Dia. N-BK7 Round Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| 4002010020 25 mm Dia. N-BK7 Round Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| 4002010007 20 mm Dia. N-BK7 Round Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| 4002010002 50.8 mm Dia. N-BK7 Round Flat Window; t=6.35 mm Uncoated | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| 3005011334 20 mm Dia. UVFS Round Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| 3005010688 25 mm Dia. UVFS Round Flat Window; t=4 mm Uncoated | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| 3005010444 87.5 mm Dia. UVFS Round Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| 3005010432 25.4 mm Dia. UVFS Round Flat Window; t=6 mm Uncoated | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| 3005010033 43 mm Dia. UVFS Round Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| 4002010207 155 mm Dia. B270 Glass Round Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | Union Optic | B270 | Circular |
| 3005011658 12.7 mm Dia. HPFS 7980 Round Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | Union Optic | HPFS7980 | Circular |
| 3005011080 25.4 mm Dia. HPFS 7980 Round Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | Union Optic | HPFS7980 | Circular |
| ARW1050-5 50.8 mm Dia. UVFS Round AR coated Flat Window; t=6.35mm 515-532nm | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| ARW1050-3 50.8 mm Dia. UVFS Round AR coated Flat Window; t=6.35mm 351-355nm | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| ARW1025-5 25.4 mm Dia. UVFS Round AR coated Flat Window; t=6.35mm 515-532nm | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| ARW1025-3 25.4 mm Dia. UVFS Round AR coated Flat Window; t=6.35mm 351-355nm | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| ARW1025-2 25.4 mm Dia. UVFS Round AR coated Flat Window; t=6.35mm 260-270nm | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| ARW1025-1 25.4 mm Dia. UVFS Round AR coated Flat Window; t=6.35mm 1028-1064nm | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| ARW1012-5 12.7 mm Dia. UVFS Round AR coated Flat Window; t=3mm 515-532nm | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| ARW1012-1 12.7 mm Dia. UVFS Round AR coated Flat Window; t=3mm 1028-1064nm | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| ARW0050-4B 50.8 mm Dia. N-BK7 Round AR coated Flat Window; t=6.35mm 400-700nm | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| ARW0025-7 25.4 mm Dia. N-BK7 Round AR coated Flat Window; t=6.35mm 780-810nm | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| ARW0025-6B 25.4 mm Dia. N-BK7 Round AR coated Flat Window; t=6.35mm 650-1100nm | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| ARW0025-6 25.4 mm Dia. N-BK7 Round AR coated Flat Window; t=6.35mm 630-650nm | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| ARW0025-1 25.4 mm Dia. N-BK7 Round AR coated Flat Window; t=6.35mm 1028-1064nm | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| ARW0012-7 12.7 mm Dia. N-BK7 Round AR coated Flat Window; t=3mm 780-810nm | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| ARW0012-6B 12.7 mm Dia. N-BK7 Round AR coated Flat Window; t=3mm 650-1100nm | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| ARW0012-51 12.7 mm Dia. N-BK7 Round AR coated Flat Window; t=3mm 515-532/1028-1070nm | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| 3005012056 20 mm Dia. N-BK7 Round AR coated Flat Window; t=2mm 515-532nm | Optics | Window | Flat Window | Union Optic | N-BK7 | Circular |
| 3005011591 20 mm Dia. UVFS Round AR coated Flat Window; t=3mm 351-355nm | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| 3005011185 30 mm Dia. UVFS Round AR coated Flat Window; t=3mm 515-532nm | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| LPW1138-3 38.1 mm Dia. UVFS Round AR coated Laser Protection Flat Window; t=3mm 1028-1080nm | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| LPW1130-6 30 mm Dia. UVFS Round AR coated Laser Protection Flat Window; t=6mm 1028-1080nm | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| LPW1130-3 30 mm Dia. UVFS Round AR coated Laser Protection Flat Window; t=3mm 1028-1080nm | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| LPW1121-2 21.5 mm Dia. UVFS Round AR coated Laser Protection Flat Window; t=2mm 1028-1080nm | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| LPW1120-1 20 mm Dia. UVFS Round AR coated Laser Protection Flat Window; t=1mm 1028-1080nm | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| 3005010165 30 mm Dia. UVFS Round AR coated Laser Protection Flat Window; t=5mm 1064nm | Optics | Window | Flat Window | Union Optic | UVFS | Circular |
| 89-567 40 mm Dia. Germanium Protective Flat Window; t=4 mm BBAR 3-5µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 83-346 50 mm Dia. Germanium Protective Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 89-570 50 mm Dia. Germanium Protective Flat Window; t=3 mm BBAR 3-5µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 11-869 50.8 mm Dia. Germanium Protective Flat Window; t=3 mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 64-380 75 mm Dia. Germanium Protective Flat Window; t=5 mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 83-355 25 mm Dia. Germanium Protective Flat Window; t=1 mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 89-564 25 mm Dia. Germanium Protective Flat Window; t=2 mm BBAR 3-5µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 83-358 50 mm Dia. Germanium Protective Flat Window; t=2 mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 68-740 50 mm Dia. Germanium Protective Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 47-685 10 mm Dia. Germanium Protective Flat Window; t=1.5 mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 83-341 12.5 mm Dia. Germanium Protective Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 62-644 12.5 mm Dia. Germanium Protective Flat Window; t=2 mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 83-350 25 mm Dia. Germanium Protective Flat Window; t=2 mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 68-737 25 mm Dia. Germanium Protective Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 11-871 25.4 mm Dia. Germanium Protective Flat Window; t=3 mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |