L317000135

Optical instrument window

L317000135 Description

21.969 inches width, 0.344 inches thickness, 24.969 inches length, glass, DD-G-451, type 1 material, glass plate iii material.

Properties of L317000135

Width:
Between 21.969 inches and 22.031 inches
Thickness:
Between 0.344 inches and 0.422 inches
Length:
Between 24.969 inches and 25.031 inches
Polished Surface:
Both
Reflection Reducing Surface:
Both
Polished Periphery:
Not provided
Material:
Glass, dd-g-451, type 1
Material:
Glass plate
Material Specification:
Dd-g-451, type 1 federal specification single material response
NSN:
1240-01-116-6993
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