8619869

Optical instrument window

8619869 Description

3.984 inches width, 0.240 inches thickness, 9.734 inches length, glass, optical, mil-g-174, class 1, grade c, type 517-645 material.

Properties of 8619869

Width:
Between 3.984 inches and 4.000 inches
Thickness:
Between 0.240 inches and 0.250 inches
Length:
Between 9.734 inches and 9.750 inches
Bevel Depth:
Between 0.062 inches and 0.078 inches
Polished Surface:
Both
Reflection Reducing Surface:
Both
Polished Periphery:
Not provided
Bevel Angle In Deg:
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
NSN:
1240-00-990-8983
Description:
Window,optical Instrument
Cage Code:
22255

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 11/04/2024