279422PC14

Optical instrument window

279422PC14 Description

20.000 millimeters diameter, 6.000 millimeters thickness, polished surface finish, one peripheral groove 1 mm /0.0393 in./ w, 0.5 mm /0.0196 in./ deep .

Features

One peripheral groove 1 mm /0.0393 in./ w, 0.5 mm /0.0196 in./ deep and 6 mm /0.2362 in./ lg across thk dim

Properties of 279422PC14

Diameter:
20.000 millimeters
Thickness:
6.000 millimeters
Surface Finish:
Polished
Refraction Index:
1.5170
Polished Surface:
Both
Dispersion:
64.5 angstroms
Polished Periphery:
Not provided
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, straight
NSN:
1240-00-581-2100
Description:
Window,optical Instrument
Cage Code:

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