5310-00-220-6761

Find complete technical information, availability, and procurement data for: 5310-00-220-6761
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-220-6761

Item Name Code

01857

Assigment Date

01/01/1961 (65 years ago)

+0.3479 to 0.3512 inches thread pitch diameters, hexagon nut style, 0.5510 inches minimum and 0.5625 inches maximum width across flats, right-hand thread direction, 0.318 inches minimum and 0.338 inches maximum nut height

Product Characteristics

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

Thread Pitch Diameters: +0.3479 to 0.3512 inches
Thread Direction: right-hand
Nut Style: hexagon
Nut Height: 0.318 inches minimum and 0.338 inches maximum
Width Across Flats: 0.5510 inches minimum and 0.5625 inches maximum
Thread Series: unf
Features Provided: casehardened
Thread Quantity Per Inch: 24
Hardness Rating: 30.0 rockwell c minimum and 37.0 rockwell c maximum
Nominal Thread Size: 0.375 inches
Bearing Surface Type: washer faced
Special Features: grooved 0.031 inches wide by 0.031 inches deep midway on head around edges of hex
Material: steel comp 1137 overall
Material Document And Classification: mil-s-866 mil spec single material response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-774-4472	No Name Available	01/01/1962

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
5310002206761	Hexagon Plain Nut
641769	Hexagon Plain Nut
7744472	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-220-6761?

The FSCG of the NSN 5310-00-220-6761 is 5310

Does the NSN 5310-00-220-6761 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-220-6761 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 5310-00-220-6761 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-220-6761 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 5310-00-220-6761 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961