5182861

Optical instrument window

5182861 Description

1.181 inches diameter, 0.082 inches thickness, glass, optical, mil-g-174, grade c, type 517-645 material, glass, optical, mil-g-174, grade c, type 517-645 iii material.

Properties of 5182861

Diameter:
Between 1.181 inches and 1.186 inches
Thickness:
Between 0.082 inches and 0.092 inches
Bevel Depth:
Between 0.007 inches and 0.012 inches
Refraction Index:
1.5170
Polished Surface:
Both
Dispersion:
64.5 angstroms
Reflection Reducing Surface:
Both
Polished Periphery:
Not provided
Bevel Angle In Deg:
Between 42.000 and 48.000
Material:
Glass, optical, mil-g-174, grade c, type 517-645
Material:
Glass, optical, mil-g-174, grade c, type 517-645
Fsc Application Data:
Telescope, elbow
NSN:
1240-00-599-9216
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 11/17/2024