3000023

Optical instrument window

3000023 Description

31.5 millimeters diameter, 5.0 millimeters thickness, telescope mk67 end item identification, glass, borosilicate crown material.

Properties of 3000023

Diameter:
31.5 millimeters
Thickness:
5.0 millimeters
End Application:
Telescope mk67 and mk69
Refraction Index:
1.5171
Dispersion:
64.3 angstroms
Polished Periphery:
Not provided
Material:
Glass, borosilicate crown
Material:
Glass, borosilicate crown
NSN:
1240-00-382-0836
Description:
Window,optical Instrument
Cage Code:
10001

Definition Optical Instrument Window

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.

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Last modified 11/17/2024