SK250-12

View detailed technical data, stock status, and sourcing information for: SK250-12
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-281-6638

Item Name Code

07623

Assigment Date

01/01/1963 (63 years ago)

2.625 inches nominal outside diameter, 2.250 inches nominal inside diameter, rectangular cross-sectional shape style, 0.063 inches minimum and 0.067 inches maximum major thickness, 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: 2.250 inches nominal
Casehardening Indicator: not casehardened
Outside Diameter: 2.625 inches nominal
Major Thickness: 0.063 inches minimum and 0.067 inches maximum
Ring Style: angular cap
Usage Design: internal
Material Hardness Rating: 42.0 rockwell c minimum and 48.0 rockwell c maximum
Material: steel comp 1065
Material Document And Classification: astm a576 fs1065 assn std single material response

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5340-00-713-2926	No Name Available	12/01/1975

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
223863	Retaining Ring
P18247	Retaining Ring
SK250-12	Retaining Ring

FAQs

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

What is the FSCG of the NSN 5325-00-281-6638?

The FSCG of the NSN 5325-00-281-6638 is 5325

Does the NSN 5325-00-281-6638 have a Schedule B code assigned?

Yes, the Schedule B code is 9606100000

Does NSN 5325-00-281-6638 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 5325-00-281-6638 contain precious materials?

Precious metal content is unknown

Does NSN 5325-00-281-6638 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 5325-00-281-6638 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963