9M188-50

View detailed technical data, stock status, and sourcing information for: 9M188-50
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-200-2538

Item Name Code

07623

Assigment Date

01/01/1960 (66 years ago)

0.439 inches nominal inside diameter, 0.529 inches minimum and 0.534 inches maximum outside diameter, not casehardened casehardening indicator, 0.033 inches minimum and 0.037 inches maximum major thickness, 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: 0.439 inches nominal
Casehardening Indicator: not casehardened
Outside Diameter: 0.529 inches minimum and 0.534 inches maximum
Major Thickness: 0.033 inches minimum and 0.037 inches maximum
Ring Style: special flat
Usage Design: internal
Material Hardness Rating: 65.0 rockwell c minimum and 68.0 rockwell c maximum
Strength Rating: 235000.0 pounds per square inch minimum tensile
Material: steel
Material Document And Classification: sae 1080 to 1090 assn std single material response
Surface Treatment: cadmium

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5365-00-282-6317	No Name Available	05/01/1993
5365-01-076-6667	No Name Available	01/01/1992
5365-01-180-0318	No Name Available	04/01/1992

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
9M188-50	Retaining Ring
RRT50	Retaining Ring
RRT50C	Retaining Ring
RRT50CDM9	Retaining Ring

FAQs

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

What is the FSCG of the NSN 5325-00-200-2538?

The FSCG of the NSN 5325-00-200-2538 is 5325

Does the NSN 5325-00-200-2538 have a Schedule B code assigned?

Yes, the Schedule B code is 9606100000

Does NSN 5325-00-200-2538 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 5325-00-200-2538 contain precious materials?

Item does not contain precious metal.

Does NSN 5325-00-200-2538 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 5325-00-200-2538 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960