217426PC7

Optical instrument window

217426PC7 Description

48.000 millimeters diameter, 4.500 millimeters thickness, glass, optical, jan-g-174, type 517-645 material, glass, optical, jan-g-174, type 517-645 iii material.

Properties of 217426PC7

Diameter:
48.000 millimeters
Thickness:
4.500 millimeters
Bevel Depth:
1.000 millimeters
Refraction Index:
1.5171
Polished Surface:
Both
Dispersion:
64.3 angstroms
Polished Periphery:
Not provided
Bevel Angle In Deg:
45.000
Material:
Glass, optical, jan-g-174, type 517-645
Material:
Glass, optical, jan-g-174, type 517-645
Fsc Application Data:
Telescope mark 66
NSN:
1240-00-382-0831
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