5310-00-056-7277

Find complete technical information, availability, and procurement data for: 5310-00-056-7277
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-056-7277

Item Name Code

01857

Assigment Date

01/01/1963 (63 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, right-hand thread direction, 0.219 inches nominal nut height, 3b thread class, 0.430 inches minimum and 0.439 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: 0.219 inches nominal
Width Across Flats: 0.430 inches minimum and 0.439 inches maximum
Thread Series: unjf
Thread Quantity Per Inch: 28
Nominal Thread Size: 0.250 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 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Below is a list of NSNs that have been officially superseded by this NSN: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
5310-00-013-8986	No Name Available	11/01/1997
5310-00-554-3545	No Name Available	11/01/1997
5310-00-804-9275	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
328835	Hexagon Plain Nut
MS9357-10	Hexagon Plain Nut
SRS328835	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-056-7277?

The FSCG of the NSN 5310-00-056-7277 is 5310

Does the NSN 5310-00-056-7277 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-056-7277 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 5310-00-056-7277 contain precious materials?

Item contains silver.

Does NSN 5310-00-056-7277 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 5310-00-056-7277 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963