316983

View detailed technical data, stock status, and sourcing information for: 316983
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-123-2590

Item Name Code

01857

Assigment Date

11/06/1968 (57 years ago)

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

hexagon nut style, 0.256 inches minimum and 0.276 inches maximum nut height, right-hand thread direction, 3b thread class, 0.492 inches minimum and 0.502 inches maximum width across flats

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
Nut Style: hexagon
Nut Height: 0.256 inches minimum and 0.276 inches maximum
Width Across Flats: 0.492 inches minimum and 0.502 inches maximum
Thread Series: unjf
Thread Quantity Per Inch: 24
Nominal Thread Size: 0.312 inches
Countersink Angle: 90.0 degrees nominal nut
Bearing Surface Type: washer faced
Bearing Surface Finish: 63.0 microinches
Material: iron alloy 660 overall
Material Document And Classification: ams 5732 assn std single material response or ams 5737 assn std single material response overall
Precious Material: silver
Surface Treatment: silver overall
Surface Treatment Document And Classification: ams 2410 assn std 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Below is a list of NSNs that have been officially superseded by this NSN: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
5310-00-579-0115	No Name Available	02/01/1979

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
316983	Hexagon Plain Nut
MS9357-11	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-123-2590?

The FSCG of the NSN 5310-00-123-2590 is 5310

Does the NSN 5310-00-123-2590 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-123-2590 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 5310-00-123-2590 contain precious materials?

Item contains silver.

Does NSN 5310-00-123-2590 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 5310-00-123-2590 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Wed, Nov 6, 1968