5310-00-087-4908

Find complete technical information, availability, and procurement data for: 5310-00-087-4908
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-087-4908

Item Name Code

15933

Assigment Date

01/01/1963 (63 years ago)

A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes:washer, concave, retainer, packing, and thrust type washers. See also spacer, sleeve; and spacer, stepped.

as fabricated heat treatment, 0.750 inches minimum and 0.760 inches maximum recess diameter, steel overall material, 0.405 inches minimum and 0.412 inches maximum hole diameter, 0.208 inches minimum and 0.228 inches maximum material thickness

Product Characteristics

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

Hole Diameter: 0.405 inches minimum and 0.412 inches maximum
Recess Diameter: 0.750 inches minimum and 0.760 inches maximum
Material Thickness: 0.208 inches minimum and 0.228 inches maximum
Heat Treatment: as fabricated
Material: steel overall
Material Document And Classification: qq-s-763 fed spec single material response overall
Surface Treatment: passivate overall
Style Designator: recessed

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
U31608-01	Recessed Washer

FAQs

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

What is the FSCG of the NSN 5310-00-087-4908?

The FSCG of the NSN 5310-00-087-4908 is 5310

Does the NSN 5310-00-087-4908 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-087-4908 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 5310-00-087-4908 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-087-4908 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 5310-00-087-4908 was assigned to the Federal Catalog?

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