1040155

Optical instrument window

1040155 Description

50.950 millimeters diameter, 5.800 millimeters thickness, glass, optical, jan-g-174, type 517-645, grade b material, glass, optical, jan-g-174, type 517-645, grade b iii material.

Properties of 1040155

Diameter:
Between 50.950 millimeters and 51.000 millimeters
Thickness:
Between 5.800 millimeters and 6.200 millimeters
Bevel Depth:
0.750 millimeters
Refraction Index:
1.5170
Polished Surface:
Both
Dispersion:
64.5 angstroms
Reflection Reducing Surface:
Both
Polished Periphery:
Not provided
Bevel Angle In Deg:
45.000
Material:
Glass, optical, jan-g-174, type 517-645, grade b
Material:
Glass, optical, jan-g-174, type 517-645, grade b
Fsc Application Data:
Telescope mk 102 mod 3
NSN:
1240-00-171-4178
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