4HC320

View detailed technical data, stock status, and sourcing information for: 4HC320
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-137-2200

Item Name Code

01857

Assigment Date

08/22/1982 (44 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, 8.0 millimeters nominal width across flats, 4.0 millimeters nominal nut height, right-hand thread direction, iso m thread series

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Direction: right-hand
Nut Style: hexagon
Nut Height: 4.0 millimeters nominal
Width Across Flats: 8.0 millimeters nominal
Thread Series: iso m
Nominal Thread Size: 5.0 millimeters
Thread Pitch In Millimeters: 0.80
Bearing Surface Type: chamfered or washer faced
Thread Tolerance Class: 6h internal
Material: steel property class 8.8 overall
Surface Treatment: dichromate overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-01-295-6108	No Name Available	12/01/1996

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
10524369	Hexagon Plain Nut
212861-1	Hexagon Plain Nut
430-005	Hexagon Plain Nut
4HC320	Hexagon Plain Nut
706103	Hexagon Plain Nut
915-005	Hexagon Plain Nut
991 2665	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-137-2200?

The FSCG of the NSN 5310-01-137-2200 is 5310

Does the NSN 5310-01-137-2200 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-137-2200 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 5310-01-137-2200 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-137-2200 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 5310-01-137-2200 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Sun, Aug 22, 1982