Optical Instrument Windows - Page 5 of 11

259 total part numbers.
7591265
NSN 1240-00-551-1926
  • Diameter: 2.348 inches
  • Thickness: 0.125 inches
  • Surface Finish: Fine ground
  • Bevel Depth: 0.020 inches
  • Refraction Index: 1.5170
A7632368
NSN 1240-00-557-0716
  • Width: 29.710 millimeters
  • Thickness: 5.800 millimeters
  • Length: 50.670 millimeters
  • Bevel Depth: 2.360 millimeters
  • Refraction Index: 1.5230
105610PC1
NSN 1240-00-557-5640
  • Width: 31.000 millimeters
  • Thickness: 3.000 millimeters
  • Length: 77.000 millimeters
  • Refraction Index: 1.5230
  • Polished Surface: Both
8298401
NSN 1240-00-580-0635
  • Width: 1.312 inches
  • Thickness: Between 0.302 inches and 0.332 inches
  • Length: 4.307 inches
  • Bevel Depth: 0.125 inches
  • Polished Surface: Both
279422PC14
NSN 1240-00-581-2100
  • Diameter: 20.000 millimeters
  • Thickness: 6.000 millimeters
  • Surface Finish: Polished
  • Refraction Index: 1.5170
  • Polished Surface: Both
5049912 Alternates: 1240005999215
NSN 1240-00-599-9215
  • Width: 23.840 millimeters
  • Thickness: 3.070 millimeters
  • Length: 37.940 millimeters
  • Refraction Index: 1.5170
  • Polished Surface: Both
5182861
NSN 1240-00-599-9216
  • Diameter: Between 1.181 inches and 1.186 inches
  • Thickness: Between 0.082 inches and 0.092 inches
  • Bevel Depth: Between 0.007 inches and 0.012 inches
  • Refraction Index: 1.5170
  • Polished Surface: Both
8567556
NSN 1240-00-599-9218
  • Surface Finish: Polished
  • Bevel Depth: 0.510 millimeters
  • Refraction Index: Between 1.5160 and 1.5180
  • Polished Surface: Both
  • Reflection Reducing Surface: Both
105475PC4
NSN 1240-00-604-9609
322968PC11 Alternates: G11594PC11
NSN 1240-00-609-5420
  • Diameter: 34.0 millimeters
  • Thickness: 6.0 millimeters
  • Refraction Index: 1.5170
  • Polished Periphery: Not provided
  • Material: Glass, optical, jan-g-174, grade a
1073978
NSN 1240-00-618-6608
  • Diameter: 36.000 millimeters
  • Thickness: 4.000 millimeters
  • Bevel Depth: 1.500 millimeters
  • Refraction Index: 1.5170
  • Polished Surface: Both
1575494
NSN 1240-00-618-9394
  • Width: 35.000 millimeters
  • Thickness: 3.300 millimeters
  • Length: 60.000 millimeters
  • Refraction Index: 1.5230
  • Polished Surface: One
8200495 Alternates: 1240006204979
NSN 1240-00-620-4979
  • Diameter: Between 2.022 inches and 2.025 inches
  • Thickness: Between 0.418 inches and 0.458 inches
  • Bevel Depth: Between 0.020 inches and 0.030 inches
  • Refraction Index: 1.5170
  • Polished Surface: Both
105610PC11
NSN 1240-00-641-0655
  • Width: 31.000 millimeters
  • Thickness: 3.000 millimeters
  • Length: 77.000 millimeters
  • Refraction Index: 1.5230
  • Polished Surface: Both
3000042 Alternates: 238518PC6
NSN 1240-00-641-0657
  • Diameter: 49.000 millimeters
  • Thickness: 5.000 millimeters
  • Bevel Depth: 3.750 millimeters
  • Refraction Index: 1.5171
  • Polished Surface: Both
165642PC1
NSN 1240-00-641-0659
  • Refraction Index: 1.5230
  • Polished Surface: Both
  • Dispersion: 58.0 angstroms
  • Reflection Reducing Surface: Both
  • Polished Periphery: Not provided
189658PC11
NSN 1240-00-641-0661
  • Diameter: 36.000 millimeters
  • Thickness: 4.000 millimeters
  • Refraction Index: 1.5170
  • Polished Surface: Both
  • Reflection Reducing Surface: Both
279495PC11
NSN 1240-00-641-2310
  • Width: 83.950 millimeters
  • Thickness: 8.000 millimeters
  • Length: 129.920 millimeters
  • Bevel Depth: 1.000 millimeters
  • Refraction Index: 1.5240
1049117 Alternates: 1049117REVB, MIL1798
NSN 1240-00-647-1084
  • Diameter: 2.164 inches
  • Thickness: 0.186 inches
  • Polished Periphery: Not provided
  • Material: Glass, optical
  • Material: Glass optical
8574985 Alternates: 1240006750478
NSN 1240-00-675-0478
  • Width: 0.500 inches
  • Diameter: 0.563 inches
  • Thickness: 0.359 inches
  • Polished Periphery: Provided
  • Material: Plastic, methyl-methacrylate
MIL013830 Alternates: 1240006839127, 8574727
NSN 1240-00-683-9127
  • Diameter: 42.8626 millimeters
  • Thickness: 3.1750 millimeters
  • Refraction Index: 1.5170
  • Polished Surface: Both
  • Polished Periphery: Not provided
3000091 Alternates: 232544PC7
NSN 1240-00-698-1669
  • Diameter: 32.0 millimeters
  • Thickness: 5.5 millimeters
  • Bevel Depth: 1.0 millimeters
  • Polished Periphery: Not provided
  • Bevel Angle In Deg: 45.000
7596947
NSN 1240-00-759-6947
  • Width: 0.930 inches
  • Thickness: 0.156 inches
  • Length: 3.930 inches
  • End Application: M110a2 howitzer
  • Bevel Depth: 0.020 inches
7641306
NSN 1240-00-764-1306
  • End Application: Abf302, mortar m2 w/mt m5
  • Material: Glass
  • Material: Glass
7650540
NSN 1240-00-765-0540
  • End Application: Used on aiming circle m2