9M188-225

View detailed technical data, stock status, and sourcing information for: 9M188-225
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-531-3971

Item Name Code

07623

Assigment Date

09/11/1974 (51 years ago)

2.386 inches minimum and 2.411 inches maximum outside diameter, 2.100 inches minimum and 2.135 inches maximum inside diameter, 0.077 inches minimum and 0.083 inches maximum major thickness, not casehardened casehardening indicator, double oval cross-sectional shape 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: double oval
Inside Diameter: 2.100 inches minimum and 2.135 inches maximum
Casehardening Indicator: not casehardened
Outside Diameter: 2.386 inches minimum and 2.411 inches maximum
Major Thickness: 0.077 inches minimum and 0.083 inches maximum
Ring Style: special flat
Usage Design: internal
Material Hardness Rating: 40.0 rockwell c minimum and 51.5 rockwell c maximum
Strength Rating: 221000.0 pounds per square inch minimum tensile
Material: steel
Material Document And Classification: sae 1070 thru 1090 assn 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Below is a list of NSNs that have been officially superseded by this NSN: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
5340-00-282-0743	No Name Available	11/01/1991

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
9M188-225	Retaining Ring
RRT225C	Retaining Ring
RRT225CDM9	Retaining Ring

FAQs

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

What is the FSCG of the NSN 5325-00-531-3971?

The FSCG of the NSN 5325-00-531-3971 is 5325

Does the NSN 5325-00-531-3971 have a Schedule B code assigned?

Yes, the Schedule B code is 9606100000

Does NSN 5325-00-531-3971 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 5325-00-531-3971 contain precious materials?

Item does not contain precious metal.

Does NSN 5325-00-531-3971 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 5325-00-531-3971 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Wed, Sep 11, 1974