| OPSH-50C02-P 50 mm Dia. Sapphire Round Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | OptoSigma | Sapphire ow | Circular |
| OPSH-30C02-P 30 mm Dia. Sapphire Round Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | OptoSigma | Sapphire ow | Circular |
| OPSI-30C03-2-3 30 mm Dia. Silicon Round Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | Silicon | Circular |
| OPZS-30C03-10-3 30 mm Dia. ZnSe Round Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | ZnSe | Circular |
| WBMA-50C05-10 50 mm Dia. N-BK7 Round AR coated Flat Window; t=5 mm 750-1550nm | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| WBMA-15C02-10 15 mm Dia. N-BK7 Round AR coated Flat Window; t=2 mm 750-1550nm | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| WBMA-20C03-10 20 mm Dia. N-BK7 Round AR coated Flat Window; t=3 mm 633-1064nm | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| WBMA-40C04-10 40 mm Dia. N-BK7 Round AR coated Flat Window; t=4 mm 633-1064nm | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| WSQNAHP-25.4C03-10-532 25.4 mm Dia. UVFS Round High Power AR coated Flat Window; t=3 mm 532nm | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-50C02-1-5 50 mm Dia. UVFS Round Optical Parallel Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-80C12-4-5 80 mm Dia. UVFS Round Optical Parallel Flat Window; t=12 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-15C03-20-2 15 mm Dia. UVFS Round Optical Parallel Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-100C15-P 100 mm Dia. UVFS Round Optical Parallel Flat Window; t=15 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-60C06-10-5 60 mm Dia. UVFS Round Optical Parallel Flat Window; t=6 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-10C02-1-5 10 mm Dia. UVFS Round Optical Parallel Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-10C03-1-5 10 mm Dia. UVFS Round Optical Parallel Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-50C01-1-5 50 mm Dia. UVFS Round Optical Parallel Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-30C02-1-5 30 mm Dia. UVFS Round Optical Parallel Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-15C03-10-5 15 mm Dia. UVFS Round Optical Parallel Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-60C03-1-5 60 mm Dia. UVFS Round Optical Parallel Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-15C05-4-5 15 mm Dia. UVFS Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-25C05-P 25 mm Dia. UVFS Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-50C01-P 50 mm Dia. UVFS Round Optical Parallel Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-20C03-4-5 20 mm Dia. UVFS Round Optical Parallel Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQK-30C03-10-5 30 mm Dia. UVFS Round Optical Parallel Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPCF-20C01-P 20 mm Dia. CaF2 Round Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | OptoSigma | CaF2 | Circular |
| OPCFU-25C02-P 25 mm Dia. CaF2 Round Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | OptoSigma | CaF2 | Circular |
| OPCFU-50C03-P 50 mm Dia. CaF2 Round Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | CaF2 | Circular |
| WBMA-30C02-10 30 mm Dia. N-BK7 Round AR coated Flat Window; t=2 mm 750-1550nm | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| WBMA-15C02-10-550 15 mm Dia. N-BK7 Round AR coated Flat Window; t=2 mm 400-700nm | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| WBMA-20C03-10-550 20 mm Dia. N-BK7 Round AR coated Flat Window; t=3 mm 400-700nm | Optics | Window | Flat Window | OptoSigma | N-BK7 | 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 |
| SAW18 15 mm Dia. Sapphire Parallel Optical Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Al2O3 | Circular |
| SAW31 50.8 mm Dia. Sapphire Parallel Optical Flat Window; t=3.15 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Al2O3 | Circular |
| 05QW40-30AR.14 12.7 mm Dia. UVFS Parallel Optical Flat Window; t=6 mm 430-700nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 10QW40-30AR.14 25.4 mm Dia. UVFS Parallel Optical Flat Window; t=6 mm 430-700nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW11AR.14 10 mm Dia. UVFS Parallel Optical Flat Window; t=1.3 mm 425-675nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW13 15 mm Dia. UVFS Parallel Optical Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW13AR.10 15 mm Dia. UVFS Parallel Optical Flat Window; t=2 mm 250-450nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW15AR.10 25 mm Dia. UVFS Parallel Optical Flat Window; t=3 mm 250-450nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW17AR.10 40 mm Dia. UVFS Parallel Optical Flat Window; t=4 mm 250-450nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW19AR.10 12.5 mm Dia. UVFS Parallel Optical Flat Window; t=2 mm 250-450nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 14OF-40 40 mm Dia. UVFS Optical Flat Window; t=10 mm Uncoated | Optics | Window | Flat Window | Standa | UVFS | Circular |
| PW0725UV 0.75 in Dia. UVFS Round Plane Optical Window; t=0.25 in Uncoated | Optics | Window | Flat Window | Laser Components | UVFS | Circular |
| PW2037UV 2 in Dia. UVFS Round Plane Optical Window; t=0.375 in Uncoated | Optics | Window | Flat Window | Laser Components | UVFS | Circular |
| PW0537C 0.5 in Dia. N-BK7 Round Plane Optical Window; t=0.375 in Uncoated | Optics | Window | Flat Window | Laser Components | N-BK7 | Circular |
| PW06308C 16 mm Dia. N-BK7 Round Plane Optical Window; t=2 mm Uncoated | Optics | Window | Flat Window | Laser Components | N-BK7 | Circular |
| 48-129 1 in Dia. UVFS Dual Surface Flat Window; t=0.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 39-396 25.4 mm Dia. Zinc Selenide Protective Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-496 50 mm Dia. Zinc Selenide Protective Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-404 50.8 mm Dia. Zinc Selenide Protective Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 48-118-000 4 in Dia. Zerodur Single Surface Flat Window; t=0.75 in Uncoated | Optics | Window | Flat Window | Edmund Optics | Zerodur | Circular |
| 31-392-000 4 in Dia. Zerodur Single Surface Flat Window; t=0.75 in Uncoated | Optics | Window | Flat Window | Edmund Optics | Zerodur | Circular |
| 49-049-000 8 in Dia. Zerodur Single Surface Flat Window; t=1.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | Zerodur | Circular |
| 10Q20RAR.L 25.4 mm Dia. UVFS Antireflection o-Texture Surface Parallel Optical Flat Window; t=4 mm 500-1100nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 05BW40-30AR.14 12.7 mm Dia. N-BK7 Parallel Optical Flat Window; t=6 mm 430-700nm | Optics | Window | Flat Window | MKS/Newport | N-BK7 | Circular |
| 10BW40-30AR.14 25.4 mm Dia. N-BK7 Parallel Optical Flat Window; t=6 mm 430-700nm | Optics | Window | Flat Window | MKS/Newport | N-BK7 | Circular |
| 10SI20 25.4 mm Dia. Silicon Optical Parallel Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Silicon | Circular |
| 10SW8-180 25.4 mm Dia. Sapphire Parallel Optical Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Al2O3 | Circular |
| 10QW40-30AR.10 25.4 mm Dia. UVFS Parallel Optical Flat Window; t=6 mm 245-440nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 20QW40-30 50.8 mm Dia. UVFS Parallel Optical Flat Window; t=10 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 20QW40-30AR.18 50.8 mm Dia. UVFS Parallel Optical Flat Window; t=10 mm 1000-1550nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW10AR.10 5 mm Dia. UVFS Parallel Optical Flat Window; t=1 mm 250-450nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW14AR.14 20 mm Dia. UVFS Parallel Optical Flat Window; t=2 mm 425-675nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW18AR.14 50 mm Dia. UVFS Parallel Optical Flat Window; t=5 mm 425-675nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 14OF-1 25.4 mm Dia. UVFS Optical Flat Window; t=8 mm Uncoated | Optics | Window | Flat Window | Standa | UVFS | Circular |
| 14OF-25 25 mm Dia. UVFS Optical Flat Window; t=8 mm Uncoated | Optics | Window | Flat Window | Standa | UVFS | Circular |
| PW0508UV 0.5 in Dia. UVFS Round Plane Optical Window; t=2 mm Uncoated | Optics | Window | Flat Window | Laser Components | UVFS | Circular |
| PW0512UV 0.5 in Dia. UVFS Round Plane Optical Window; t=0.125 in Uncoated | Optics | Window | Flat Window | Laser Components | UVFS | Circular |
| PW06308UV 16 mm Dia. UVFS Round Plane Optical Window; t=2 mm Uncoated | Optics | Window | Flat Window | Laser Components | UVFS | Circular |
| PW0512C 0.5 in Dia. N-BK7 Round Plane Optical Window; t=0.125 in Uncoated | Optics | Window | Flat Window | Laser Components | N-BK7 | Circular |
| PW0604C 15 mm Dia. N-BK7 Round Plane Optical Window; t=1 mm Uncoated | Optics | Window | Flat Window | Laser Components | N-BK7 | Circular |