7591265

Optical instrument window

7591265 Description

2.348 inches diameter, 0.125 inches thickness, fine ground surface finish, glass, optical, mil-g-174, grade d, type 517-645 material.

Properties of 7591265

Diameter:
2.348 inches
Thickness:
0.125 inches
Surface Finish:
Fine ground
Bevel Depth:
0.020 inches
Refraction Index:
1.5170
Polished Surface:
Both
Dispersion:
64.5 angstroms
Beveled/polished Edge Plating Material:
Any acceptable
Polished Periphery:
Provided
Bevel Angle In Deg:
45.000
Material:
Glass, optical, mil-g-174, grade d, type 517-645
Material:
Glass, optical, mil-g-174, grade d, type 517-645
NSN:
1240-00-551-1926
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 04/28/2024