| FS-152.4-10 152.4 mm Dia. UVFS Flat Window; t=10mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| GE-W-12.7-1 12.7 mm Dia. Germanium Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-12.7-2 12.7 mm Dia. Germanium Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-25.4-1 25.4 mm Dia. Germanium Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-38.1-6 38.1 mm Dia. Germanium Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-76.2-6 76.2 mm Dia. Germanium Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| KB-W-25.4x5 25.4 mm Dia. KBr Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KB-W-38.1x4 38.1 mm Dia. KBr Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KB-W-38.1x6 38.1 mm Dia. KBr Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KB-W-50.8x5 50.8 mm Dia. KBr Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KC-W-38.1-4 38.1 mm Dia. KCl Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| NC-W-12.7-3 12.7 mm Dia. NaCl Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| NC-W-38.1-5 38.1 mm Dia. NaCl Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| NC-W-40-10 40 mm Dia. NaCl Flat Window; t=10mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| NC-W-63.5-8 63.5 mm Dia. NaCl Flat Window; t=8mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| MF-W-12.7x2 12.7 mm Dia. MgF2 Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Magnesium Fluoride | Circular |
| MF-W-25.4x3 25.4 mm Dia. MgF2 Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Magnesium Fluoride | Circular |
| MF-W-38.1x6 38.1 mm Dia. MgF2 Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Magnesium Fluoride | Circular |
| SI-W-6.35-0.5 6.35 mm Dia. Silicon Flat Window; t=0.5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Circular |
| SI-W-50.8-1 50.8 mm Dia. Silicon Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Circular |
| SI-W-50.8-3 50.8 mm Dia. Silicon Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Circular |
| SI-W-50.8-4 50.8 mm Dia. Silicon Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Circular |
| ZnSe-W-12.7-1 12.7 mm Dia. ZnSe Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | ZnSe | Circular |
| ZnSe-W-38.1-5 38.1 mm Dia. ZnSe Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | ZnSe | Circular |
| ZnSe-W-50.8-3 50.8 mm Dia. ZnSe Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | ZnSe | Circular |
| ZnSe-W-50.8-5 50.8 mm Dia. ZnSe Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | ZnSe | Circular |
| CaF2-W-25.4x6 25.4 mm Dia. CaF2 Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| CaF2-W-31.75x1 31.75 mm Dia. CaF2 Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| CaF2-W-50.8x2 50.8 mm Dia. CaF2 Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| BF-W-6.85-0.5 6.9 mm Dia. BaF2 Flat Window; t=0.5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| BF-W-25.4-2 25.4 mm Dia. BaF2 Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| BF-W-25.4-5 25.4 mm Dia. BaF2 Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| BF-W-50.8-4 50.8 mm Dia. BaF2 Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| BF-W-63.5-6 63.5 mm Dia. BaF2 Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| BF-W-63.5-8 63.5 mm Dia. BaF2 Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| BF-W-152.4-10 152.4 mm Dia. BaF2 Flat Window; t=10mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| FS-w-76.2-6 76.2 mm Dia. UVFS Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| FS-w-76.2-8 76.2 mm Dia. UVFS Flat Window; t=8mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| FS-w-101.6-8 101.6 mm Dia. UVFS Flat Window; t=8mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| GE-W-25.4-5 25.4 mm Dia. Germanium Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-25.4-6 25.4 mm Dia. Germanium Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-50.8-1 50.8 mm Dia. Germanium Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-50.8-5 50.8 mm Dia. Germanium Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| KB-W-25.4x2 25.4 mm Dia. KBr Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KB-W-25.4x6 25.4 mm Dia. KBr Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KB-W-50.8x6 50.8 mm Dia. KBr Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KB-W-63.5x6 63.5 mm Dia. KBr Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KC-W-12.7-3 12.7 mm Dia. KCl Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KC-W-63.5-6 63.5 mm Dia. KCl Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| NC-W-25.4-3 25.4 mm Dia. NaCl Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| NC-W-38.1-4 38.1 mm Dia. NaCl Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| NC-W-38.1-6 38.1 mm Dia. NaCl Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| MF-W-38.1x2 38.1 mm Dia. MgF2 Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Magnesium Fluoride | Circular |
| MF-W-38.1x4 38.1 mm Dia. MgF2 Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Magnesium Fluoride | Circular |
| AL-W-16x0.75 16 mm Dia. Sapphire Flat Window; t=0.75mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Al2O3 | Circular |
| AL-W-25.4-3 25.4 mm Dia. Sapphire Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Al2O3 | Circular |
| SI-W-38.1-6 38.1 mm Dia. Silicon Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Circular |
| SI-W-63.5-3 63.5 mm Dia. Silicon Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Circular |
| SI-W-76.2-3 76.2 mm Dia. Silicon Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Circular |
| ZnSe-W-25.4-1 25.4 mm Dia. ZnSe Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | ZnSe | Circular |
| ZnSe-W-25.4-5 25.4 mm Dia. ZnSe Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | ZnSe | Circular |
| ZnSe-W-32x3 32 mm Dia. ZnSe Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | ZnSe | Circular |
| CaF2-W-25.4x3 25.4 mm Dia. CaF2 Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| CaF2-W-101.6x15 101.6 mm Dia. CaF2 Flat Window; t=15mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| CaF2-W-152.4x10 152.4 mm Dia. CaF2 Flat Window; t=10mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| CaF2-W-75x25x1 75 x 25 mm CaF2 Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Rectangular |
| BF-W-38.1-6 38.1 mm Dia. BaF2 Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| BF-W-50.8-3 50.8 mm Dia. BaF2 Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| FS-w-25.4-3 25.4 mm Dia. UVFS Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| GE-W-38.1-3 38.1 mm Dia. Germanium Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-50.8-6 50.8 mm Dia. Germanium Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-76.2-3 76.2 mm Dia. Germanium Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| Ge-W-200-7 200 mm Dia. Germanium Flat Window; t=7mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| KB-W-50.8x4 50.8 mm Dia. KBr Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KB-W-95x35 95 mm Dia. KBr Flat Window; t=35mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KC-W-25.4-5 25.4 mm Dia. KCl Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KC-W-38.1-6 38.1 mm Dia. KCl Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KC-W-50.8-4 50.8 mm Dia. KCl Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KC-W-50-6 50.8 mm Dia. KCl Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| NC-W-50.8-1 50.8 mm Dia. NaCl Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| NC-W-50.8-4 50.8 mm Dia. NaCl Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| NC-W-50-6 50.8 mm Dia. NaCl Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| MF-W-12.7x1 12.7 mm Dia. MgF2 Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Magnesium Fluoride | Circular |
| MF-W-50.8x3 50.8 mm Dia. MgF2 Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Magnesium Fluoride | Circular |
| MF-W-50.8x5 50.8 mm Dia. MgF2 Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Magnesium Fluoride | Circular |
| MF-W-50.8x6 50.8 mm Dia. MgF2 Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Magnesium Fluoride | Circular |
| AL-W-12.7-0.5 12.7 mm Dia. Sapphire Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Al2O3 | Circular |
| AL-W-12.7-1 12.7 mm Dia. Sapphire Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Al2O3 | Circular |
| AL-W-38.1-3 38.1 mm Dia. Sapphire Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Al2O3 | Circular |
| AL-W-63.5-3 63.5 mm Dia. Sapphire Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Al2O3 | Circular |
| AL-W-90-3 90 mm Dia. Sapphire Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Al2O3 | Circular |
| SI-W-12.7-1 12.7 mm Dia. Silicon Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Circular |
| SI-W-12.7-2 12.7 mm Dia. Silicon Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Circular |
| 47-940 10 mm Dia. Silicon Protective Flat Window; t=1.5mm BBAR 3-5µm | Optics | Window | Flat Window | Edmund Optics | Silicon | Circular |
| 68-526 25 mm Dia. Silicon Protective Flat Window; t=2mm BBAR 3-5µm | Optics | Window | Flat Window | Edmund Optics | Silicon | Circular |
| 36-068 5 mm Dia. Borofloat33 Protective Flat Window; t=1.1mm Hydrophobic 425-675nm | Optics | Window | Flat Window | Edmund Optics | Borofloat33 | Circular |
| 34-528 75 mm Dia. Borofloat33 Protective Flat Window; t=1.1mm Hydrophobic 425-675nm | Optics | Window | Flat Window | Edmund Optics | Borofloat33 | Circular |
| 88-356 5 mm Dia. Borofloat33 Protective Flat Window; t=1.1mm Hydrophobic 425-675nm | Optics | Window | Flat Window | Edmund Optics | Borofloat33 | Circular |
| WQK4001-AI1 40 mm Dia. N-BK7 Precision Round Window; t=6mm AR 630-1100nm | Optics | Window | Flat Window | Knight Optical | N-BK7 | Circular |
| WQK5050-AI1 50 x 50 mm N-BK7 Precision Rectangular Window; t=8mm AR 630-1100nm | Optics | Window | Flat Window | Knight Optical | N-BK7 | Rectangular |