| 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 |
| 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 |
| CaF2-W-38.1x1 38.1 mm Dia. CaF2 Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| CaF2-W-38.1x2 38.1 mm Dia. CaF2 Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| BF-W-12.7-2 12.7 mm Dia. BaF2 Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| BF-W-38.1-3 38.1 mm Dia. BaF2 Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| BF-W-38.1-4 38.1 mm Dia. BaF2 Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| BaF2-W-49x3 49 mm Dia. BaF2 Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| FS-w-25.4-1 25.4 mm Dia. UVFS Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| FS-w-50.8-3 50.8 mm Dia. UVFS Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| FS-w-50.8-5 50.8 mm Dia. UVFS Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| GE-W-13x2 13 mm Dia. Germanium Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-25.4-2 25.4 mm Dia. Germanium Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-38.1-4 38.1 mm Dia. Germanium Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-63.5-6 63.5 mm Dia. Germanium Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| Ge-W-101.6-8 101.6 mm Dia. Germanium Flat Window; t=8mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| KB-W-12.7x3 12.7 mm Dia. KBr Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KBr-W-32x3 32 mm Dia. KBr Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |