279495PC12

View detailed technical data, stock status, and sourcing information for: 279495PC12

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279495PC12
Federal Supply Group
Fire Control Equipment
Federal Supply Classification
1240 Optical Sighting and Ranging Equipment
National Stock Number
1240-00-171-7902
Item Name Code
10908
Assigment Date
01/01/1963 (63 years ago)

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.

1.5240 nominal refraction index, both polished surface, 1.000 millimeters nominal bevel depth, 61.000 millimeters nominal diameter, 6.000 millimeters nominal thickness

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Diameter
61.000 millimeters nominal
Thickness
6.000 millimeters nominal
Bevel Depth
1.000 millimeters nominal
Refraction Index
1.5240 nominal
Polished Surface
both
Reflection Reducing Surface
both
Polished Periphery
not provided
Bevel Angle In Deg
45.000 nominal
Material
glass optical location not otherwise specified
Material Document And Classification
jan-g-174, type 523-586, grade c mil spec single material response location not otherwise specified
Fsc Application Data
periscope mk mod 6

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
279495PC12 Optical Instrument Window

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 1240-00-171-7902?
The FSCG of the NSN 1240-00-171-7902 is 1240
Does the NSN 1240-00-171-7902 have a Schedule B code assigned?
Yes, the Schedule B code is 9803200000
Does NSN 1240-00-171-7902 require demilitarization?
Usml or ccl military items - demil required. Destroy item and components to prevent restoration or repair to a usable condition. (note 5).
Does NSN 1240-00-171-7902 contain precious materials?
Item does not contain precious metal.
Does NSN 1240-00-171-7902 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 1240-00-171-7902 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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