645121S431

View detailed technical data, stock status, and sourcing information for: 645121S431
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-840-3975

Item Name Code

07623

Assigment Date

01/01/1960 (66 years ago)

4.023 inches minimum and 4.048 inches maximum inside diameter, 4.479 inches minimum and 4.504 inches maximum outside diameter, not casehardened casehardening indicator, double oval cross-sectional shape style, 0.057 inches minimum and 0.065 inches maximum major thickness

Product Characteristics

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

Cross-Sectional Shape Style: double oval
Inside Diameter: 4.023 inches minimum and 4.048 inches maximum
Casehardening Indicator: not casehardened
Outside Diameter: 4.479 inches minimum and 4.504 inches maximum
Major Thickness: 0.057 inches minimum and 0.065 inches maximum
Ring Style: special flat
Usage Design: internal
Strength Rating: 185000.0 pounds per square inch minimum tensile
Material: steel corrosion resisting
Surface Treatment: passivate

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
10160178	Retaining Ring
645121S431	Retaining Ring
RR431S	Retaining Ring

FAQs

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

What is the FSCG of the NSN 5325-00-840-3975?

The FSCG of the NSN 5325-00-840-3975 is 5325

Does the NSN 5325-00-840-3975 have a Schedule B code assigned?

Yes, the Schedule B code is 9606100000

Does NSN 5325-00-840-3975 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5325-00-840-3975 contain precious materials?

Item does not contain precious metal.

Does NSN 5325-00-840-3975 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 5325-00-840-3975 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960