002-004311-001

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-312-8110

Item Name Code

01857

Assigment Date

12/22/1989 (36 years ago)

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes:nut (1), self-locking, cap.

hexagon nut style, right-hand thread direction, 0.250 inches nominal width across flats, 0.265 inches minimum and 0.275 inches maximum nut height, 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
Nut Style: hexagon
Nut Height: 0.265 inches minimum and 0.275 inches maximum
Width Across Flats: 0.250 inches nominal
Thread Series: unc
Thread Quantity Per Inch: 40
Nominal Thread Size: 0.112 inches
Bearing Surface Type: flat
Material: steel comp 303 overall
Surface Treatment: passivate overall

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
002-004311-001	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-312-8110?

The FSCG of the NSN 5310-01-312-8110 is 5310

Does the NSN 5310-01-312-8110 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-312-8110 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 5310-01-312-8110 contain precious materials?

Precious metal content is unknown

Does NSN 5310-01-312-8110 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 5310-01-312-8110 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Fri, Dec 22, 1989