278691PC8

Optical instrument window

278691PC8 Description

18.000 millimeters diameter, 1.600 millimeters thickness, glass, optical, jan-g-174, type 523-586, grade c material, glass, optical, jan-g-174, type 523-586, grade c iii material.

Properties of 278691PC8

Diameter:
18.000 millimeters
Thickness:
1.600 millimeters
Refraction Index:
1.5230
Polished Surface:
Both
Polished Periphery:
Not provided
Material:
Glass, optical, jan-g-174, type 523-586, grade c
Material:
Glass, optical, jan-g-174, type 523-586, grade c
Fsc Application Data:
Rangefinder mk 58
NSN:
1240-00-171-4222
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