5310-01-220-6521

Find complete technical information, availability, and procurement data for: 5310-01-220-6521
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-220-6521

Item Name Code

15930

Assigment Date

11/16/1985 (40 years ago)

A washer, round in shape, and having a centrally located hole. One bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing sleeve; or spacer, sleeve. Excludes:insulator, washer and thrust type washers.

5310-01-220-6521, concave washer

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
172B5415	Concave Washer
ADB-26255	Concave Washer

FAQs

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

What is the FSCG of the NSN 5310-01-220-6521?

The FSCG of the NSN 5310-01-220-6521 is 5310

Does the NSN 5310-01-220-6521 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-01-220-6521 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 5310-01-220-6521 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-220-6521 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 5310-01-220-6521 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Sat, Nov 16, 1985