Optical Instrument Window

Model / MPN: MIL2041 | NSN: 1240-00-531-3719

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.

Product Details

NATO Stock Number

1240-00-531-3719

Sold in multiples of

1 EA

DEMIL

DEMIL/MLI

Diameter

Between 25.200 millimeters and 25.400 millimeters

Thickness

Between 2.800 millimeters and 3.200 millimeters

Refraction Index

1.5230

Polished Surface

One

Dispersion

58.600 angstroms

Diffusion Producing Surface

One

Polished Periphery

Not provided

Material

Glass, optical, jan-g-174, type 523-586, grade c

Material

Glass, optical, jan-g-174, type 523-586, grade c

Fsc Application Data

Telescope, straight

MIL20 Series Parts

Pricing and Availability

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MIL2041 Cross Reference

1073812
1073812