5310-00-721-5443

Find complete technical information, availability, and procurement data for: 5310-00-721-5443
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-721-5443

Item Name Code

15931

Assigment Date

01/01/1963 (63 years ago)

0.381 inches minimum and 0.401 inches maximum hole diameter, 0.552 inches minimum and 0.572 inches maximum outside diameter, steel overall material, 0.084 inches minimum and 0.104 inches maximum material thickness, cadmium or zinc 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: 0.381 inches minimum and 0.401 inches maximum
Outside Diameter: 0.552 inches minimum and 0.572 inches maximum
Material Thickness: 0.084 inches minimum and 0.104 inches maximum
Material: steel overall
Surface Treatment: cadmium or zinc overall
Surface Treatment Document And Classification: an-p-61 fed spec 1st treatment response and an-p-32 fed spec 2nd treatment response overall
Style Designator: convex

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-331-3231	No Name Available	01/01/1963

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
8193373	Convex Washer
AN955-6	Convex Washer

FAQs

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

What is the FSCG of the NSN 5310-00-721-5443?

The FSCG of the NSN 5310-00-721-5443 is 5310

Does the NSN 5310-00-721-5443 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-721-5443 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 5310-00-721-5443 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-721-5443 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 5310-00-721-5443 was assigned to the Federal Catalog?

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