5310-00-208-6957

Find complete technical information, availability, and procurement data for: 5310-00-208-6957
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-208-6957

Item Name Code

05277

Assigment Date

01/01/1960 (66 years ago)

3b thread class, 0.437 inches nominal width across flats, prevailing torque with nonmetallic insert locking feature, 0.312 inches nominal nut height, 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: 3b
Thread Direction: right-hand
Locking Feature: prevailing torque with nonmetallic insert
Nut Height: 0.312 inches nominal
Width Across Flats: 0.437 inches nominal
Temp Rating: 250.0 fahrenheit nominal
Thread Series: unc
Thread Quantity Per Inch: 20
Nominal Thread Size: 0.250 inches
Material: fiber locking insert
Material: steel comp 1212 nut
Material Document And Classification: 66 fed std single material response nut

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-972-0316	No Name Available	05/06/1967

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
29E040	Hexagon Self-Locking Nut
A302400	Hexagon Self-Locking Nut
A30240000-7	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-208-6957?

The FSCG of the NSN 5310-00-208-6957 is 5310

Does the NSN 5310-00-208-6957 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-208-6957 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 5310-00-208-6957 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-208-6957 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 5310-00-208-6957 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960