US181S

View detailed technical data, stock status, and sourcing information for: US181S
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-116-1435

Item Name Code

07623

Assigment Date

10/02/1968 (57 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.

1.736 inches nominal inside diameter, 0.031 inches nominal major thickness, 1.972 inches nominal outside diameter, rectangular cross-sectional shape style, not casehardened casehardening indicator

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: rectangular
Inside Diameter: 1.736 inches nominal
Casehardening Indicator: not casehardened
Outside Diameter: 1.972 inches nominal
Major Thickness: 0.031 inches nominal
Ring Style: special
Usage Design: external
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
US181S	Retaining Ring
VS-181-S02	Retaining Ring

FAQs

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

What is the FSCG of the NSN 5325-00-116-1435?

The FSCG of the NSN 5325-00-116-1435 is 5325

Does the NSN 5325-00-116-1435 have a Schedule B code assigned?

Yes, the Schedule B code is 9606100000

Does NSN 5325-00-116-1435 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 5325-00-116-1435 contain precious materials?

Precious metal content is unknown

Does NSN 5325-00-116-1435 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 5325-00-116-1435 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Wed, Oct 2, 1968