5310-01-021-6691

Find complete technical information, availability, and procurement data for: 5310-01-021-6691
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-021-6691

Item Name Code

01857

Assigment Date

05/18/1976 (50 years ago)

0.553 inches nominal width across flats, hexagon nut style, 0.218 inches nominal nut height, 2b thread class, right-hand thread direction

Product Characteristics

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

Thread Class: 2b
Thread Direction: right-hand
Nut Style: hexagon
Nut Height: 0.218 inches nominal
Width Across Flats: 0.553 inches nominal
Thread Series: unc
Thread Quantity Per Inch: 16
Nominal Thread Size: 0.375 inches
Bearing Surface Type: chamfered
Material: steel overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-01-007-8515	No Name Available	04/01/1990

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
90494A031	Hexagon Plain Nut
F9119	Hexagon Plain Nut
F9119-0962	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-021-6691?

The FSCG of the NSN 5310-01-021-6691 is 5310

Does the NSN 5310-01-021-6691 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-021-6691 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 5310-01-021-6691 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-021-6691 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 5310-01-021-6691 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Tue, May 18, 1976