1235962

Optical instrument window

1235962 Description

287.000 millimeters width, 18.800 millimeters thickness, 349.000 millimeters length, four rounded corners 26.5 mm plus 1.0, minus 0.0 (1.0433 in.) radius .

Features

Four rounded corners 26.5 mm plus 1.0, minus 0.0 (1.0433 in.) radius

Properties of 1235962

Width:
Between 287.000 millimeters and 288.000 millimeters
Thickness:
Between 18.800 millimeters and 19.200 millimeters
Length:
Between 349.000 millimeters and 350.000 millimeters
Bevel Depth:
2.000 millimeters
Refraction Index:
1.5170
Dispersion:
64.5 angstroms
Reflection Reducing Surface:
One
Polished Periphery:
Not provided
Bevel Angle In Deg:
45.000
Material:
Glass, optical, jan-g-174, type 517-645, grade c
Material:
Glass, optical, jan-g-174, type 517-645, grade c
Fsc Application Data:
Telescope mk 102 mod 3
NSN:
1240-00-171-4177
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