2 0040-311

View detailed technical data, stock status, and sourcing information for: 2 0040-311
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-226-9991

Item Name Code

07623

Assigment Date

01/01/1963 (63 years ago)

A resilient metal item, circular or nearly circular, which is designed to be inserted into an internal or external groove and retained by its own spring action, or it may have external prongs or projections designed to be inserted into a hole and retained by spring action of the prongs which grip by imbedding into the material. For items having internal prongs which perform the same function, see push on nut. It is used to keep and/or lock a part(s) in position, as a ball bearing on a shaft or in a housing. See also clip, retaining and pin, lock. Excludes:ring, connecting, round.

0.075 inches minimum and 0.081 inches maximum major thickness, not casehardened casehardening indicator, beveled one outside corner cross-sectional shape style, 0.056 inches minimum and 0.059 inches maximum minor thickness, 2.619 inches minimum and 2.659 inches maximum outside diameter

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: beveled one outside corner
Casehardening Indicator: not casehardened
Outside Diameter: 2.619 inches minimum and 2.659 inches maximum
Minor Thickness: 0.056 inches minimum and 0.059 inches maximum
Major Thickness: 0.075 inches minimum and 0.081 inches maximum
Ring Style: internal
Usage Design: internal
Material Hardness Rating: 47.0 rockwell c minimum and 52.0 rockwell c maximum
Material: steel
Material Document And Classification: fed std 66,1066 to 1090 fed std single material response
Surface Treatment: phosphate

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
10327153	Retaining Ring
12Z5018-155	Retaining Ring
2 0040-311	Retaining Ring
731616PC13	Retaining Ring
MS 16631-3244	Retaining Ring
MS16631-3244	Retaining Ring
N5002-244PP	Retaining Ring

FAQs

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

What is the FSCG of the NSN 5325-00-226-9991?

The FSCG of the NSN 5325-00-226-9991 is 5325

Does the NSN 5325-00-226-9991 have a Schedule B code assigned?

Yes, the Schedule B code is 9606100000

Does NSN 5325-00-226-9991 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 5325-00-226-9991 contain precious materials?

Item does not contain precious metal.

Does NSN 5325-00-226-9991 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 5325-00-226-9991 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963