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Optical Instrument Window

Model / MPN: 415275PC1 | NSN: 6650-00-800-4092
ITAR Registered seal

A color free item of transparent or translucent material, usually optical glass, having specific light dispersive and refractive properties. This item must have two plane-parallel surfaces and is designed for use in an optical instrument to provide a barrier to foreign matter and/or permit light transmission in or to the optical system.

Product Details
NATO Stock Number
6650-00-800-4092
Sold in multiples of
1 EA
DEMIL
DEMIL/MLI
Diameter
Between 55.515 inches and 55.520 inches
Thickness
Between 13.200 millimeters and 13.600 millimeters
Surface Finish
Polished
Bevel Depth
1.500 millimeters
Refraction Index
Between 1.5150 and 1.5190
Polished Surface
Both
Dispersion
Between 64.000 angstroms and 65.000 angstroms
Polished Periphery
Provided
Bevel Angle In Deg
45.000
Material
Glass, optical, jan-g-174, type 517-645, grade c
Material
Glass, optical, jan-g-174, type 517-645, grade c
Fsc Application Data
Telescope mk 90 mod 0

Pricing and Availability

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415275PC1 Cross Reference
  • 415275PC1