| 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 |
| PW1-5010M-C 50 mm Dia. N-BK7 Laser Grade Optical Window; t=10mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | N-BK7 | Circular |
| PW1-2037-C 50.8 mm Dia. N-BK7 Laser Grade Optical Window; t=9.53mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | N-BK7 | Circular |
| PW1-1025-C 25.4 mm Dia. N-BK7 Laser Grade Optical Window; t=6.35mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | N-BK7 | Circular |
| PW1-0525-C 12.7 mm Dia. N-BK7 Laser Grade Optical Window; t=6.35mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | N-BK7 | Circular |
| PW1-0725-UV 19.1 mm Dia. UVFS Laser Grade Optical Window; t=6.35mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| PW1-1025-UV 25.4 mm Dia. UVFS Laser Grade Optical Window; t=6.35mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| PW1-1525-UV 38.1 mm Dia. UVFS Laser Grade Optical Window; t=6.35mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| PW1-3050-UV 76.2 mm Dia. UVFS Laser Grade Optical Window; t=12.7mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| PW1-4050-UV 101.6 mm Dia. UVFS Laser Grade Optical Window; t=12.7mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| PW1-1004-UV 25.4 mm Dia. UVFS Laser Grade Optical Window; t=1mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| PW1-1012-UV 25.4 mm Dia. UVFS Laser Grade Optical Window; t=3.18mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| PW1-1037-UV 25.4 mm Dia. UVFS Laser Grade Optical Window; t=9.53mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| PW1-6010-UV 152.4 mm Dia. UVFS Laser Grade Optical Window; t=25.4mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| RW-40.0-30.0-5.00-UV 40 x 30 mm UVFS Laser Grade Optical Window; t=5mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Rectangular |
| RW-28.6-14.3-3.18-UV 28.6 x 14.3 mm UVFS Laser Grade Optical Window; t=3.18mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Rectangular |
| IF-0525-C 12.7 mm Dia. N-BK7 Interferometer Laser Grade Flat Window; t=6.35mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | N-BK7 | Circular |
| IF-0512-C 12.7 mm Dia. N-BK7 Interferometer Laser Grade Flat Window; t=3.18mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | N-BK7 | Circular |
| IF-4050-UV 101.6 mm Dia. UVFS Interferometer Laser Grade Flat Window; t=12.7mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| IF-3050-UV 76.2 mm Dia. UVFS Interferometer Laser Grade Flat Window; t=12.7mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| IF-2025-UV 50.8 mm Dia. UVFS Interferometer Laser Grade Flat Window; t=6.35mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| IF-1025-UV 25.4 mm Dia. UVFS Interferometer Laser Grade Flat Window; t=6.35mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| IF-1012-UV 25.4 mm Dia. UVFS Interferometer Laser Grade Flat Window; t=3.18mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| IF-0525-UV 12.7 mm Dia. UVFS Interferometer Laser Grade Flat Window; t=6.35mm Uncoated | Optics | Window | Flat Window | CVI Laser Optics | UVFS | Circular |
| LW-3-2037-UV 50.8 mm Dia. UVFS Large Laser Grade Wedge Window; t=9.53mm Uncoated | Optics | Window | Wedge Window | CVI Laser Optics | UVFS | Circular |
| LW-3-1037-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-1-2037-UV 50.8 mm Dia. UVFS Large Laser Grade Wedge Window; t=9.53mm Uncoated | Optics | Window | Wedge Window | CVI Laser Optics | UVFS | Circular |
| LW-3-3050-UV 76.2 mm Dia. UVFS Large Laser Grade Wedge Window; t=12.7mm Uncoated | Optics | Window | Wedge Window | CVI Laser Optics | UVFS | Circular |
| LW-1-1037-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 |
| BF-ww-12.7-2 12.7 mm Dia. BaF2 Wedge Window; t=2mm Uncoated | Optics | Window | Wedge Window | Alkor Technologies | BAF2 | Circular |
| 68-511 12.5 mm Dia. Zinc Selenide Protective Flat Window; t=1mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-516 12.5 mm Dia. Zinc Selenide Protective Flat Window; t=1mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-499 12.5 mm Dia. Zinc Selenide Protective Flat Window; t=2mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-405 12.7 mm Dia. Zinc Selenide Protective Flat Window; t=1mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-419 12.7 mm Dia. Zinc Selenide Protective Flat Window; t=1mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 63-210 20 mm Dia. Zinc Selenide Protective Flat Window; t=2mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-512 25 mm Dia. Zinc Selenide Protective Flat Window; t=1mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-517 25 mm Dia. Zinc Selenide Protective Flat Window; t=1mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-518 25 mm Dia. Zinc Selenide Protective Flat Window; t=2mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 47-938 25 mm Dia. Zinc Selenide Protective Flat Window; t=3mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-501 25 mm Dia. Zinc Selenide Protective Flat Window; t=3mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-407 25 mm Dia. Zinc Selenide Protective Flat Window; t=5mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-421 25 mm Dia. Zinc Selenide Protective Flat Window; t=5mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-409 25.4 mm Dia. Zinc Selenide Protective Flat Window; t=2mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-434 25.4 mm Dia. Zinc Selenide Protective Flat Window; t=2mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-410 25.4 mm Dia. Zinc Selenide Protective Flat Window; t=3mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-437 25.4 mm Dia. Zinc Selenide Protective Flat Window; t=5mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 63-211 30 mm Dia. Zinc Selenide Protective Flat Window; t=3mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-502 30 mm Dia. Zinc Selenide Protective Flat Window; t=3mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 63-212 40 mm Dia. Zinc Selenide Protective Flat Window; t=4mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-503 40 mm Dia. Zinc Selenide Protective Flat Window; t=4mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-514 50 mm Dia. Zinc Selenide Protective Flat Window; t=1mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-520 50 mm Dia. Zinc Selenide Protective Flat Window; t=2mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-504 50 mm Dia. Zinc Selenide Protective Flat Window; t=3mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-438 50 mm Dia. Zinc Selenide Protective Flat Window; t=5mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-413 50.8 mm Dia. Zinc Selenide Protective Flat Window; t=1mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-414 50.8 mm Dia. Zinc Selenide Protective Flat Window; t=2mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-464 50.8 mm Dia. Zinc Selenide Protective Flat Window; t=2mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-415 50.8 mm Dia. Zinc Selenide Protective Flat Window; t=3mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-416 50.8 mm Dia. Zinc Selenide Protective Flat Window; t=5mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-467 50.8 mm Dia. Zinc Selenide Protective Flat Window; t=5mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 48-855 75 mm Dia. Zinc Selenide Protective Flat Window; t=6mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 34-522 5 mm Dia. Borofloat33 Protective Flat Window; t=1.1mm Hydrophobic 425-675nm | Optics | Window | Flat Window | Edmund Optics | Borofloat33 | Circular |
| 64-378 30 mm Dia. Germanium Protective Flat Window; t=3 mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 64-379 40 mm Dia. Germanium Protective Flat Window; t=4 mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 11-863 50.8 mm Dia. Germanium Protective Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 83-344 25 mm Dia. Germanium Protective Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 47-687 25 mm Dia. Germanium Protective Flat Window; t=3 mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 83-351 50 mm Dia. Germanium Protective Flat Window; t=1 mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 11-866 50.8 mm Dia. Germanium Protective Flat Window; t=3 mm BBAR 3-5µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 11-864 76.2 mm Dia. Germanium Protective Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 83-357 50 mm Dia. Germanium Protective Flat Window; t=1 mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 83-352 50 mm Dia. Germanium Protective Flat Window; t=2 mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 11-872 50.8 mm Dia. Germanium Protective Flat Window; t=3 mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 11-867 76.2 mm Dia. Germanium Protective Flat Window; t=5 mm BBAR 3-5µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 11-873 76.2 mm Dia. Germanium Protective Flat Window; t=5 mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | Germanium | Circular |
| 43-426 2 in Dia. UVFS Dual Surface Flat Window; t=0.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 43-434 8 in Dia. UVFS Dual Surface Flat Window; t=1.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 48-130 2 in Dia. UVFS Dual Surface Flat Window; t=0.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 39-391 12.7 mm Dia. Zinc Selenide Protective Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-400 50.8 mm Dia. Zinc Selenide Protective Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 43-416-000 2 in Dia. UVFS Single Surface Flat Window; t=0.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 48-117-000 3 in Dia. Zerodur Single Surface Flat Window; t=0.75 in Uncoated | Optics | Window | Flat Window | Edmund Optics | Zerodur | Circular |
| 31-391-000 3 in Dia. Zerodur Single Surface Flat Window; t=0.75 in Uncoated | Optics | Window | Flat Window | Edmund Optics | Zerodur | Circular |
| 49-048-000 8 in Dia. UVFS Single Surface Flat Window; t=1.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 46-715-000 10 in Dia. UVFS Single Surface Flat Window; t=1.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 05Q20RAR.L 12.7 mm Dia. UVFS Antireflection o-Texture Surface Parallel Optical Flat Window; t=3.18 mm 500-1100nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 20Q20-NL 50.8 mm Dia. UVFS Parallel Optical Flat Window; t=9.4 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 10BW40-30 25.4 mm Dia. N-BK7 Parallel Optical Flat Window; t=6 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | N-BK7 | Circular |
| MGW10 5 mm Dia. Magnesium Fluoride Optical Parallel Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Magnesium Fluoride | Circular |
| CAW12 12.5 mm Dia. Calcium Fluoride Parallel Optical Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | CaF2 | Circular |
| CAW16 20 mm Dia. Calcium Fluoride Parallel Optical Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | CaF2 | Circular |