1240005406185

Optical instrument window

1240005406185 Description

1.528 inches diameter, 0.240 inches thickness, feat criticality code justification, light deviation not to exceed 5 min of arc .

Features

Light deviation not to exceed 5 min of arc and surface quali type 80-50

Properties of 1240005406185

Diameter:
Between 1.528 inches and 1.531 inches
Thickness:
Between 0.240 inches and 0.270 inches
Polished Surface:
Both
Polished Periphery:
Not provided
Criticality Code Justification:
Feat
Material:
Glass, optical, mil-g-174, grade c
Material:
Glass, optical, mil-g-174, grade c
Fsc Application Data:
Infinity sight
NSN:
1240-00-540-6185
Description:
Window,optical Instrument
Cage Code:

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 03/29/2024