21FA632

View detailed technical data, stock status, and sourcing information for: 21FA632
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-016-7539

Item Name Code

05277

Assigment Date

02/21/1976 (50 years ago)

hexagon nut style, right-hand thread direction, 3b thread class, prevailing torque all metal design locking feature, 0.180 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 Class: 3b
Thread Direction: right-hand
Locking Feature: prevailing torque all metal design
Nut Style: hexagon
Nut Height: 0.180 inches maximum
Width Across Flats: 0.305 inches minimum and 0.313 inches maximum
Thread Series: unjc
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.138 inches
Bearing Surface Type: chamfered
Material: steel overall
Surface Treatment: cadmium overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-941-3761	No Name Available	06/01/2006

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
21FA632	Hexagon Self-Locking Nut
489165	Hexagon Self-Locking Nut
489231	Hexagon Self-Locking Nut
D52Z6624-62	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-016-7539?

The FSCG of the NSN 5310-01-016-7539 is 5310

Does the NSN 5310-01-016-7539 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-016-7539 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 5310-01-016-7539 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-016-7539 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 5310-01-016-7539 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Sat, Feb 21, 1976