| WQK4040-AV2 40 x 40 mm N-BK7 Precision Rectangular Window; t=6mm AR 450-900nm | Optics | Window | Flat Window | Knight Optical | N-BK7 | Rectangular |
| WGP1000-AV2 100 x 100 mm Schott Borofloat 33 Rectangular Window; t=1.1mm AR 400-1000nm | Optics | Window | Flat Window | Knight Optical | Borofloat33 | Rectangular |
| WGE5033 50 mm Dia. Germanium Round Window; t=3mm AR-DLC 7-14µm | Optics | Window | Flat Window | Knight Optical | Germanium | Circular |
| WGE5011 50 mm Dia. Germanium Round Window; t=10mm AR-DLC 7-14µm | Optics | Window | Flat Window | Knight Optical | Germanium | Circular |
| SI-W-101.6-6 101.6 mm Dia. Silicon Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Circular |
| ZnSe-W-19.05x3 19.05 mm Dia. ZnSe Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | ZnSe | Circular |
| ZnSe-W-50.8-4 50.8 mm Dia. ZnSe Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | ZnSe | Circular |
| 33-136 30 mm Dia. Silicon Protective Flat Window; t=2mm BBAR 3-5µm | Optics | Window | Flat Window | Edmund Optics | Silicon | Circular |
| 64-145 25 mm Dia. Zinc Sulfide Protective Flat Window; t=3mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 64-146 40 mm Dia. Zinc Sulfide Protective Flat Window; t=4mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 36-069 10 mm Dia. Borofloat33 Protective Flat Window; t=1.1mm Hydrophobic 425-675nm | Optics | Window | Flat Window | Edmund Optics | Borofloat33 | Circular |
| WQK1515-AI1 15 x 15 mm N-BK7 Precision Rectangular Window; t=4mm AR 630-1100nm | Optics | Window | Flat Window | Knight Optical | N-BK7 | Rectangular |
| WQK6500-AV2 65 mm Dia. N-BK7 Precision Round Window; t=8mm AR 450-900nm | Optics | Window | Flat Window | Knight Optical | N-BK7 | Circular |
| WHF2500-AU1 25 mm Dia. UVFS Round Window; t=3mm AR 248-400nm | Optics | Window | Flat Window | Knight Optical | UVFS | Circular |
| WGE5014 50 mm Dia. Germanium Round Window; t=3mm AR 3-12µm | Optics | Window | Flat Window | Knight Optical | Germanium | Circular |
| WGE2544 25 mm Dia. Germanium Round Window; t=3mm AR 3-12µm | Optics | Window | Flat Window | Knight Optical | Germanium | Circular |
| WZN5000 50 mm Dia. Zinc Selenide Standard Round Window; t=3mm AR 10600nm | Optics | Window | Flat Window | Knight Optical | ZnSe | Circular |
| WZN2504 25 mm Dia. Zinc Selenide Standard Round Window; t=4mm AR 10600nm | Optics | Window | Flat Window | Knight Optical | ZnSe | Circular |
| WGW1000-AV2 10 mm Dia. White Float Round Window; t=1mm AR 450-900nm | Optics | Window | Flat Window | Knight Optical | Soda Lime | Circular |
| WGW2516-AV2 15 x 25 mm White Float Rectangular Window; t=1mm AR 450-900nm | Optics | Window | Flat Window | Knight Optical | Soda Lime | Rectangular |
| WIW4000-I02 40 mm Dia. White Float Round Window; t=1mm ITO 20 ohm/SQ inch | Optics | Window | Flat Window | Knight Optical | Soda Lime | Circular |
| WIW5050-I02 50 x 50 mm White Float Rectangular Window; t=1mm ITO 20 ohm/SQ inch | Optics | Window | Flat Window | Knight Optical | Soda Lime | Rectangular |
| WGW4029-AV8 25 x 40 mm White Float Rectangular Window; t=3mm SLAR 425-680nm | Optics | Window | Flat Window | Knight Optical | Soda Lime | Rectangular |
| WGW5059-AV8 50 x 50 mm White Float Rectangular Window; t=3mm SLAR 425-680nm | Optics | Window | Flat Window | Knight Optical | Soda Lime | Rectangular |
| WZSA-19.05C03-10600A 19 mm Dia. ZnSe Flat Window for Infrared Laser; t=3mm 10.6µm | Optics | Window | Flat Window | OptoSigma | ZnSe | Circular |
| WZSA-30C03-10-10600 30 mm Dia. ZnSe Flat Window for Infrared Laser; t=2mm 10.6µm | Optics | Window | Flat Window | OptoSigma | ZnSe | Circular |
| WZSA-38.1C03-10600A 38.1 mm Dia. ZnSe Flat Window for Infrared Laser; t=3mm 10.6µm | Optics | Window | Flat Window | OptoSigma | ZnSe | Circular |
| WSQNAHP-50C05-10-532 50 mm Dia. UVFS Flat Window for High Power Laser; t=5mm 532nm | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| WSQNAHP-50C05-10-355 50 mm Dia. UVFS Flat Window for High Power Laser; t=5mm 355nm | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| HO-WCBC-10-3 10 mm Dia. N-BK7 Circular Flat Window; t=5mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Circular |
| HO-WCBC-20-3 20 mm Dia. N-BK7 Circular Flat Window; t=5mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Circular |
| HO-WCBB-10-1 10 mm Dia. N-BK7 Circular Flat Window; t=5mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Circular |
| HO-WCBB-15-3 15 mm Dia. N-BK7 Circular Flat Window; t=5mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Circular |
| HO-WCBB-30-1 30 mm Dia. N-BK7 Circular Flat Window; t=8mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Circular |
| HO-WCBB-40-1 40 mm Dia. N-BK7 Circular Flat Window; t=8mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Circular |
| HO-WCSB-10-3 10 mm Dia. UVFS Circular Flat Window; t=5mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Circular |
| HO-WCSB-15-3 15 mm Dia. UVFS Circular Flat Window; t=5mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Circular |
| HO-WCSB-50-3 50 mm Dia. UVFS Circular Flat Window; t=8mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Circular |
| HO-WRBC-10-1 10 x 20 mm N-BK7 Flat Window; t=5mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Rectangular |
| HO-WRBC-20-3 20 x 35 mm N-BK7 Flat Window; t=5mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Rectangular |
| HO-WSBC-25-1 25 x 25 mm N-BK7 Flat Window; t=6mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Rectangular |
| HO-WRBC-30-3 30 x 50 mm N-BK7 Flat Window; t=8mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Rectangular |
| HO-WRBB-10-1 10 x 20 mm N-BK7 Flat Window; t=5mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Rectangular |
| HO-WRBB-20-1 20 x 35 mm N-BK7 Flat Window; t=5mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Rectangular |
| HO-WSBB-25-1 25 x 25 mm N-BK7 Flat Window; t=6mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Rectangular |
| HO-WRSC-10-1 10 x 20 mm UVFS Flat Window; t=5mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Rectangular |
| HO-WRSC-10-3 10 x 20 mm UVFS Flat Window; t=5mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Rectangular |
| HO-WRSC-20-3 20 x 35 mm UVFS Flat Window; t=5mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Rectangular |
| HO-WRSB-10-1 10 x 20 mm UVFS Flat Window; t=5mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Rectangular |
| HO-WRSB-30-3 30 x 50 mm UVFS Flat Window; t=8mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Rectangular |
| 05QW20-2 12.5 mm Dia. UVFS High Energy Laser Line Optical Flat Window; t=3mm V-Coat 532nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 10QW20-2 25 mm Dia. UVFS High Energy Laser Line Optical Flat Window; t=3mm V-Coat 532nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 10QW20-3 25 mm Dia. UVFS High Energy Laser Line Optical Flat Window; t=3mm V-Coat 355nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 10QW20-4 25 mm Dia. UVFS High Energy Laser Line Optical Flat Window; t=3mm V-Coat 266nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| WZN1701 17.5 mm Dia. Zinc Selenide Standard Round Window; t=1mm AR 2-14µm | Optics | Window | Flat Window | Knight Optical | ZnSe | Circular |
| WGW2515-AV2 15 x 25 mm White Float Rectangular Window; t=1mm AR 450-900nm | Optics | Window | Flat Window | Knight Optical | Soda Lime | Rectangular |
| WGW5050-AV2 50 x 50 mm White Float Rectangular Window; t=1mm AR 450-900nm | Optics | Window | Flat Window | Knight Optical | Soda Lime | Rectangular |
| WGW100109-AV8 100 x 100 mm White Float Rectangular Window; t=3mm SLAR 425-680nm | Optics | Window | Flat Window | Knight Optical | Soda Lime | Rectangular |
| WGW2500-AV8 25 mm Dia. White Float Round Window; t=3mm SLAR 425-680nm | Optics | Window | Flat Window | Knight Optical | Soda Lime | Circular |
| HO-WCBC-10-1 10 mm Dia. N-BK7 Circular Flat Window; t=5mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Circular |
| HO-WCBC-25-1 25 mm Dia. N-BK7 Circular Flat Window; t=6mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Circular |
| HO-WCBC-40-1 40 mm Dia. N-BK7 Circular Flat Window; t=8mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Circular |
| HO-WCBC-50-1 50 mm Dia. N-BK7 Circular Flat Window; t=8mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Circular |
| HO-WCSC-10-1 10 mm Dia. UVFS Circular Flat Window; t=5mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Circular |
| HO-WCSC-50-1 50 mm Dia. UVFS Circular Flat Window; t=8mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Circular |
| HO-WCSB-20-1 20 mm Dia. UVFS Circular Flat Window; t=5mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Circular |
| HO-WRBC-15-1 15 x 30 mm N-BK7 Flat Window; t=5mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Rectangular |
| HO-WSBC-25-3 25 x 25 mm N-BK7 Flat Window; t=6mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Rectangular |
| HO-WRBC-30-1 30 x 50 mm N-BK7 Flat Window; t=8mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Rectangular |
| HO-WSBC-50-1 50 x 50 mm N-BK7 Flat Window; t=8mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Rectangular |
| HO-WRBB-10-3 10 x 20 mm N-BK7 Flat Window; t=5mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Rectangular |
| HO-WSBB-25-3 25 x 25 mm N-BK7 Flat Window; t=6mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Rectangular |
| HO-WRSC-30-3 30 x 50 mm UVFS Flat Window; t=8mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Rectangular |
| HO-WRSB-30-1 30 x 50 mm UVFS Flat Window; t=8mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Rectangular |
| GEW13AR.20 25 mm Dia. Germanium Optical Parallel Flat Window; t=3mm 3-12µm | Optics | Window | Flat Window | MKS/Newport | Germanium | Circular |
| FSW13AR.15 15 mm Dia. UVFS Parallel Optical Flat Window; t=2mm 250-700nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW18AR.15 50 mm Dia. UVFS Parallel Optical Flat Window; t=5mm 250-700nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW11AR.15 10 mm Dia. UVFS Parallel Optical Flat Window; t=1.3mm 250-700nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| WZN2520 25 mm Dia. Zinc Selenide Standard Round Window; t=2mm AR 10600nm | Optics | Window | Flat Window | Knight Optical | ZnSe | Circular |
| WGW1511-AV2 15 mm Dia. White Float Round Window; t=1mm AR 450-900nm | Optics | Window | Flat Window | Knight Optical | Soda Lime | Circular |
| WGW2526-AV2 25 x 25 mm White Float Rectangular Window; t=1mm AR 450-900nm | Optics | Window | Flat Window | Knight Optical | Soda Lime | Rectangular |
| WGW5099-AV8 50 mm Dia. White Float Round Window; t=3mm SLAR 425-680nm | Optics | Window | Flat Window | Knight Optical | Soda Lime | Circular |
| HO-WCBC-15-1 15 mm Dia. N-BK7 Circular Flat Window; t=5mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Circular |
| HO-WCBB-10-3 10 mm Dia. N-BK7 Circular Flat Window; t=5mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Circular |
| HO-WCSC-15-3 15 mm Dia. UVFS Circular Flat Window; t=5mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Circular |
| HO-WCSC-20-3 20 mm Dia. UVFS Circular Flat Window; t=5mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Circular |
| HO-WCSC-25-3 25 mm Dia. UVFS Circular Flat Window; t=6mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Circular |
| HO-WCSC-40-3 40 mm Dia. UVFS Circular Flat Window; t=8mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Circular |
| HO-WCSB-15-1 15 mm Dia. UVFS Circular Flat Window; t=5mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Circular |
| HO-WRBC-20-1 20 x 35 mm N-BK7 Flat Window; t=5mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Rectangular |
| HO-WRBB-30-3 30 x 50 mm N-BK7 Flat Window; t=8mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | N-BK7 | Rectangular |
| HO-WSSC-50-1 50 x 50 mm UVFS Flat Window; t=8mm Single Layer MgF2 | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Rectangular |
| HO-WRSB-20-1 20 x 35 mm UVFS Flat Window; t=5mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Rectangular |
| HO-WSSB-25-1 25 x 25 mm UVFS Flat Window; t=6mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Rectangular |
| HO-WSSB-25-3 25 x 25 mm UVFS Flat Window; t=6mm BBAR 400-700nm | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Rectangular |
| 14DM-05-DAR9-0-1 12.7 mm Dia. UVFS Dual AR coated Flat Window; t=5mm 532/1064nm | Optics | Window | Flat Window | Standa | UVFS | Circular |
| 14DM-1-DAR9-0-1 25.4 mm Dia. UVFS Dual AR coated Flat Window; t=5mm 532/1064nm | Optics | Window | Flat Window | Standa | UVFS | Circular |
| ZNW16AR.20 50 mm Dia. Zinc Selenide Parallel Optical Flat Window; t=3mm 3-12µm | Optics | Window | Flat Window | MKS/Newport | ZnSe | Circular |
| ZNW17AR.20 74.9 mm Dia. Zinc Selenide Parallel Optical Flat Window; t=6mm 3-12µm | Optics | Window | Flat Window | MKS/Newport | ZnSe | Circular |
| 05QW20-1 12.5 mm Dia. UVFS High Energy Laser Line Optical Flat Window; t=3mm V-Coat 1064nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |