RST-393-S

View detailed technical data, stock status, and sourcing information for: RST-393-S
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-01-212-4967

Item Name Code

07623

Assigment Date

07/12/1985 (41 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.

3.690 inches minimum and 3.730 inches maximum inside diameter, not casehardened casehardening indicator, double oval cross-sectional shape style, 4.190 inches minimum and 4.230 inches maximum outside diameter, 0.108 inches minimum and 0.114 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: 3.690 inches minimum and 3.730 inches maximum
Casehardening Indicator: not casehardened
Outside Diameter: 4.190 inches minimum and 4.230 inches maximum
Major Thickness: 0.108 inches minimum and 0.114 inches maximum
Ring Style: spiral
Usage Design: external
Strength Rating: 175000.0 pounds per square inch minimum tensile
Material: steel comp 302 or steel comp 301
Material Document And Classification: fed std 66, comp 302 fed std 1st material response and mil-s-5059, type 302 mil spec 2nd material response and ams 5519 assn std 3rd material response and qq-s-766, class 302 fed spec 4th material response

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
BCW-20-155	Retaining Ring
EL-262-5 PIECE 155	Retaining Ring
RST-393-S	Retaining Ring

FAQs

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

What is the FSCG of the NSN 5325-01-212-4967?

The FSCG of the NSN 5325-01-212-4967 is 5325

Does the NSN 5325-01-212-4967 have a Schedule B code assigned?

Yes, the Schedule B code is 9606100000

Does NSN 5325-01-212-4967 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 5325-01-212-4967 contain precious materials?

Item does not contain precious metal.

Does NSN 5325-01-212-4967 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 5325-01-212-4967 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Fri, Jul 12, 1985