Optical Instrument Window

Model / MPN: 1040155 | NSN: 1240-00-171-4178

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

1240-00-171-4178

Sold in multiples of

1 EA

DEMIL

DEMIL/MLI

Diameter

Between 50.950 millimeters and 51.000 millimeters

Thickness

Between 5.800 millimeters and 6.200 millimeters

Bevel Depth

0.750 millimeters

Refraction Index

1.5170

Polished Surface

Both

Dispersion

64.5 angstroms

Reflection Reducing Surface

Both

Polished Periphery

Not provided

Bevel Angle In Deg

45.000

Material

Glass, optical, jan-g-174, type 517-645, grade b

Material

Glass, optical, jan-g-174, type 517-645, grade b

Fsc Application Data

Telescope mk 102 mod 3

10401 Series Parts

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

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1040155 Cross Reference

52476