2590-01-531-3971

Find complete technical information, availability, and procurement data for: 2590-01-531-3971
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Federal Supply Group

Vehicular Equipment Components

Federal Supply Classification

2590 Miscellaneous Vehicular Components

National Stock Number

2590-01-531-3971

Item Name Code

39891

Assigment Date

07/07/2005 (21 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

1.050 inches nominal overall height, plain mounting hole type, 6 mounting hole quantity, 3.020 inches nominal overall width, 22.960 inches nominal overall length

Product Characteristics

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

Overall Length: 22.960 inches nominal
Overall Height: 1.050 inches nominal
Overall Width: 3.020 inches nominal
Mounting Hole Quantity: 6
Mounting Hole Type: plain
End Item Identification: m939
Part Name Assigned By Controlling Agency: bracket-mount bottom m939

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
RD-4-6011	Vehicular Components Bracket
RD-4-6011-0P	Vehicular Components Bracket

FAQs

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

What is the FSCG of the NSN 2590-01-531-3971?

The FSCG of the NSN 2590-01-531-3971 is 2590

Does the NSN 2590-01-531-3971 have a Schedule B code assigned?

Yes, the Schedule B code is 8710000090

Does NSN 2590-01-531-3971 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 2590-01-531-3971 contain precious materials?

Item does not contain precious metal.

Does NSN 2590-01-531-3971 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 2590-01-531-3971 was assigned to the Federal Catalog?

It was assigned 21 years ago, on Thu, Jul 7, 2005