5310-00-638-0251

Find complete technical information, availability, and procurement data for: 5310-00-638-0251
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-638-0251

Item Name Code

01869

Assigment Date

01/01/1963 (63 years ago)

A washer of nonresilient material usually having two parallel bearing surfaces. The outside and/or inside edges have one or more protuberances. The ends and/or edges may be prebent at any angle or the protuberances may be prebent at any angle to the bearing surfaces. The keys or lugs may be fitted into keyways in adjacent material or they may be bent over after application to hold or lock one or more items in place. Excludes:thrust type washer.

0.084 inches nominal distance from centerline to top of internal key, 0.060 inches minimum and 0.061 inches maximum internal straight key width, 1 internal key quantity, 0.859 inches minimum and 0.891 inches maximum outside diameter, 0.250 inches minimum and 0.253 inches maximum hole diameter

Product Characteristics

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

Hole Diameter: 0.250 inches minimum and 0.253 inches maximum
Outside Diameter: 0.859 inches minimum and 0.891 inches maximum
Internal Straight Key Width: 0.060 inches minimum and 0.061 inches maximum
Distance From Centerline To Top Of Internal Key: 0.084 inches nominal
Internal Key Quantity: 1
Material Thickness: 0.0568 inches minimum and 0.0628 inches maximum
Material: steel comp 302 overall
Material Document And Classification: qq-s-766 cond a fed spec single material response overall
Surface Treatment: passivate overall
Style Designator: key

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
5310006380251	Key Washer
7595767	Key Washer

FAQs

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

What is the FSCG of the NSN 5310-00-638-0251?

The FSCG of the NSN 5310-00-638-0251 is 5310

Does the NSN 5310-00-638-0251 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-638-0251 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 5310-00-638-0251 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-638-0251 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 5310-00-638-0251 was assigned to the Federal Catalog?

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