B773764-6

View detailed technical data, stock status, and sourcing information for: B773764-6
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-637-3718

Item Name Code

13393

Assigment Date

01/01/1963 (63 years ago)

A thin flat metal or plastic item of various peripheral shapes having a solid or laminated cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole and having a solid rectangular cross-section use disk, solid, plain. Items with either (1) a solid (not laminated) cross-section, or (2) a non-separable laminated cross-section with one hole centrally located, must have a thickness less than 0.006 inch (0.152 mm) for items less than 1/4 inch (6.35 mm) outside diameter or shortest distance across peripheral flats, and less than 0.016 inch (0.406 mm) for items 1/4 inch (6.35 mm) or more outside diameter, or shortest distance across peripheral flats. For items with thickness greater than those indicated above, see spacer, plate; washer, flat and spacer, ring. When thickness and/or outside diameter or shortest distance across peripheral flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance. See also shim stock, laminated; shim stock assortment, gasket; and bearing, washer, thrust.

0.028 inches minimum and 0.038 inches maximum thickness, round peripheral shape style, rectangular cross-sectional shape style, round center hole shape style, 0.250 inches nominal hole diameter

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: 0.250 inches nominal
Peripheral Shape Style: round
Center Hole Shape Style: round
Thickness: 0.028 inches minimum and 0.038 inches maximum
Overall Diameter: 0.344 inches nominal
Material: steel overall
Material Document And Classification: mil-s-7720 mil spec single material response overall

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
B773764-6	Flat Washer

FAQs

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

What is the FSCG of the NSN 5310-00-637-3718?

The FSCG of the NSN 5310-00-637-3718 is 5310

Does the NSN 5310-00-637-3718 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-637-3718 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 5310-00-637-3718 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-637-3718 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 5310-00-637-3718 was assigned to the Federal Catalog?

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