21FAF518

View detailed technical data, stock status, and sourcing information for: 21FAF518
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-462-4651

Item Name Code

05277

Assigment Date

05/16/1969 (57 years ago)

prevailing torque all metal design locking feature, hexagon nut style, soluble lubricant lubrication, right-hand thread direction, 2b thread class

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
Locking Feature: prevailing torque all metal design
Lubrication: soluble lubricant
Nut Style: hexagon
Nut Height: 0.353 inches maximum
Width Across Flats: 0.492 inches minimum and 0.502 inches maximum
Thread Series: unc
Thread Quantity Per Inch: 18
Nominal Thread Size: 0.312 inches
Bearing Surface Type: chamfered
Material: steel overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,ty 1,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Below is a list of NSNs that have been officially superseded by this NSN: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
5310-01-050-3833	No Name Available	04/01/1990
5310-01-386-7603	No Name Available	10/01/2000

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
21-FAF518	Hexagon Self-Locking Nut
21FAF518	Hexagon Self-Locking Nut
5310PL0725858	Hexagon Self-Locking Nut
70200004-05	Hexagon Self-Locking Nut
80008ADX	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-462-4651?

The FSCG of the NSN 5310-00-462-4651 is 5310

Does the NSN 5310-00-462-4651 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-462-4651 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 5310-00-462-4651 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-462-4651 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 5310-00-462-4651 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, May 16, 1969