5310-00-261-7397

Find complete technical information, availability, and procurement data for: 5310-00-261-7397
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-261-7397

Item Name Code

14218

Assigment Date

01/01/1963 (63 years ago)

0.060 inches minimum and 0.065 inches maximum material thickness, 0.565 inches minimum and 0.580 inches maximum outside diameter, 0.255 inches minimum and 0.263 inches maximum hole diameter, steel overall material, phosphate overall surface treatment

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Hole Diameter: 0.255 inches minimum and 0.263 inches maximum
Outside Diameter: 0.565 inches minimum and 0.580 inches maximum
Material Thickness: 0.060 inches minimum and 0.065 inches maximum
Material: steel overall
Surface Treatment: phosphate overall
Style Designator: split helical-right hand

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-193-7487	Lock Washer	07/01/2025
5310-00-354-2549	No Name Available	12/01/1975
5310-00-700-1247	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
7001247	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-00-261-7397?

The FSCG of the NSN 5310-00-261-7397 is 5310

Does the NSN 5310-00-261-7397 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-00-261-7397 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 5310-00-261-7397 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-261-7397 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 5310-00-261-7397 was assigned to the Federal Catalog?

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