5310-01-020-4676

Find complete technical information, availability, and procurement data for: 5310-01-020-4676
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-020-4676

Item Name Code

13393

Assigment Date

04/30/1976 (50 years ago)

A washer, usually round, with a centrally-located hole. Its edges and two bearing surfaces are designed in such a way that applied pressure brings into play the spring tension and/or frictional locking principle that materially resists any tendency toward turning. It may be made of one or two pieces.

0.312 inches minimum and 0.315 inches maximum hole diameter, 0.020 inches nominal thickness, round peripheral shape style, rectangular cross-sectional shape style, round center hole 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: rectangular
Hole Diameter: 0.312 inches minimum and 0.315 inches maximum
Peripheral Shape Style: round
Center Hole Shape Style: round
Thickness: 0.020 inches nominal
Overall Diameter: 0.490 inches minimum and 0.510 inches maximum
Material: aluminum alloy 1100 or aluminum alloy 3003 overall
Material Document And Classification: qq-a-250/1 fed spec 1st material response and qq-a-250/2 fed spec 2nd material response overall
Surface Treatment: anodize or chromate overall
Surface Treatment Document And Classification: mil-a-8625 mil spec 1st treatment response or mil-c-5541 mil spec 2nd treatment response overall
Specification/Standard Data: 70210-s8157 manufacturers standard

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
S8157A54-020A	Flat Washer

FAQs

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

What is the FSCG of the NSN 5310-01-020-4676?

The FSCG of the NSN 5310-01-020-4676 is 5310

Does the NSN 5310-01-020-4676 have a Schedule B code assigned?

Yes, the Schedule B code is 7616108000

Does NSN 5310-01-020-4676 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 5310-01-020-4676 contain precious materials?

Precious metal content is unknown

Does NSN 5310-01-020-4676 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 5310-01-020-4676 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Fri, Apr 30, 1976