Optical Instrument Window

Model / MPN: 278703PC7 | NSN: 1240-00-171-4224

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

1240-00-171-4224

Sold in multiples of

1 EA

DEMIL

DEMIL/MLI

Diameter

Between 7.850 millimeters and 7.920 millimeters

Thickness

Between 2.900 millimeters and 3.200 millimeters

Bevel Depth

0.800 millimeters

Refraction Index

1.5230

Polished Surface

One

Dispersion

58.6 angstroms

Polished Periphery

Not provided

Bevel Angle In Deg

Between 44.834 and 45.166

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

Rangefinder mk 33 mods 5 and 6

278703PC Series Parts

Pricing and Availability

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Optical Instrument Window

Pricing and Availability

Certified Quality Assurance

278703PC7 Cross Reference