90790-37

View detailed technical data, stock status, and sourcing information for: 90790-37
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-167-0837

Item Name Code

13393

Assigment Date

01/01/1963 (63 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.

rectangular cross-sectional shape style, 0.022 inches minimum and 0.042 inches maximum thickness, 0.380 inches minimum and 0.400 inches maximum hole diameter, round peripheral 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: 0.380 inches minimum and 0.400 inches maximum
Peripheral Shape Style: round
Center Hole Shape Style: round
Thickness: 0.022 inches minimum and 0.042 inches maximum
Overall Diameter: 0.620 inches minimum and 0.645 inches maximum
Material: steel overall
Material Document And Classification: mil-s-7952 mil spec single material response or qq-s-698 fed spec single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-187-3680	Flat Washer	07/01/2025
5310-00-199-2170	No Name Available	01/01/1983
5310-00-276-3452	No Name Available	07/06/2005
5310-00-302-1784	No Name Available	01/01/1963
5310-00-461-5608	No Name Available	06/01/2006
5310-00-483-9613	No Name Available	04/01/1992
5310-00-532-8027	No Name Available	11/01/1980
5310-00-557-8739	No Name Available	07/08/1970
5310-00-598-6554	No Name Available	11/01/1979
5310-00-639-3809	No Name Available	01/01/1960
5310-00-793-8753	No Name Available	02/22/1971
5310-00-994-1256	No Name Available	10/01/1982

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
10082409	Flat Washer
12M2547-7	Flat Washer
21100100-000	Flat Washer
2410164	Flat Washer
3188544PC9	Flat Washer
3188547PC5	Flat Washer
3188554PC18	Flat Washer
3189442PC39	Flat Washer
5310001670837	Flat Washer
5310PL0153248	Flat Washer
5544165-6	Flat Washer
791-540-90335	Flat Washer
800034-00	Flat Washer
810J61-1FN55	Flat Washer
840300	Flat Washer
90790-37	Flat Washer
938.77.11.118	Flat Washer
AN960-616L	Flat Washer
ASNA2397-616L	Flat Washer
HFLW037EG	Flat Washer

FAQs

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

What is the FSCG of the NSN 5310-00-167-0837?

The FSCG of the NSN 5310-00-167-0837 is 5310

Does the NSN 5310-00-167-0837 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-167-0837 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 5310-00-167-0837 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-167-0837 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 5310-00-167-0837 was assigned to the Federal Catalog?

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