4000-156-ST-CD

View detailed technical data, stock status, and sourcing information for: 4000-156-ST-CD
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-139-6827

Item Name Code

07623

Assigment Date

09/10/1971 (54 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.

1.675 inches minimum and 1.708 inches maximum outside diameter, not casehardened casehardening indicator, rectangular cross-sectional shape style, 0.059 inches minimum and 0.065 inches maximum major thickness, internal inverted lugs ring style

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
Casehardening Indicator: not casehardened
Outside Diameter: 1.675 inches minimum and 1.708 inches maximum
Major Thickness: 0.059 inches minimum and 0.065 inches maximum
Ring Style: internal inverted lugs
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,aisi or sae 1066 thru 1090 fed std single material response
Surface Treatment: cadmium and chromate

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5365-00-582-7733	No Name Available	01/01/1993

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
4000-156-ST-CD	Retaining Ring
5008-156-S-MD	Retaining Ring
508-156SMD	Retaining Ring
MS16627-1156	Retaining Ring

FAQs

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

What is the FSCG of the NSN 5325-00-139-6827?

The FSCG of the NSN 5325-00-139-6827 is 5325

Does the NSN 5325-00-139-6827 have a Schedule B code assigned?

Yes, the Schedule B code is 9606100000

Does NSN 5325-00-139-6827 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 5325-00-139-6827 contain precious materials?

Item does not contain precious metal.

Does NSN 5325-00-139-6827 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 5325-00-139-6827 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Fri, Sep 10, 1971