G7945PC3

View detailed technical data, stock status, and sourcing information for: G7945PC3

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G7945PC3
Federal Supply Group
Fire Control Equipment
Federal Supply Classification
1240 Optical Sighting and Ranging Equipment
National Stock Number
1240-00-171-7898
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.

4.000 millimeters nominal thickness, 64.5 angstroms nominal dispersion, 24.800 millimeters minimum and 25.000 millimeters maximum diameter, 1.5171 nominal refraction index, both polished surface

Product Characteristics

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

Diameter
24.800 millimeters minimum and 25.000 millimeters maximum
Thickness
4.000 millimeters nominal
Refraction Index
1.5171 nominal
Polished Surface
both
Dispersion
64.5 angstroms nominal
Reflection Reducing Surface
both
Polished Periphery
not provided
Material
glass optical location not otherwise specified
Material Document And Classification
jan-g-174, type 517-645, grade a mil spec single material response location not otherwise specified

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
169984PC3 Optical Instrument Window
189659PC3 Optical Instrument Window
G7945PC3 Optical Instrument Window

FAQs

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

What is the FSCG of the NSN 1240-00-171-7898?
The FSCG of the NSN 1240-00-171-7898 is 1240
Does the NSN 1240-00-171-7898 have a Schedule B code assigned?
Yes, the Schedule B code is 9803200000
Does NSN 1240-00-171-7898 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 1240-00-171-7898 contain precious materials?
Item does not contain precious metal.
Does NSN 1240-00-171-7898 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 1240-00-171-7898 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

Professional Distribution

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