8619922

Optical instrument window

8619922 Description

3.225 inches width, 0.240 inches thickness, 4.225 inches length, glass, optical, mil-g-174, class 1, grade c, type 517-645 material.

Properties of 8619922

Width:
Between 3.225 inches and 3.240 inches
Thickness:
Between 0.240 inches and 0.250 inches
Length:
Between 4.225 inches and 4.240 inches
Bevel Depth:
Between 0.105 inches and 0.125 inches
Polished Surface:
Both
Polished Periphery:
Not provided
Bevel Angle In Deg:
Between 42.000 and 48.000
Material:
Glass, optical, mil-g-174, class 1, grade c, type 517-645
Material:
Glass, optical, mil-g-174, class 1, grade c, type 517-645
Fsc Application Data:
Periscope
NSN:
1240-00-989-5947
Description:
Window,optical Instrument
Cage Code:
19200

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