5310-00-478-2742

Find complete technical information, availability, and procurement data for: 5310-00-478-2742
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-478-2742

Item Name Code

01854

Assigment Date

06/28/1971 (55 years ago)

A tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. It must have a visible or detectable means of lubrication or be self-lubricated. The over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. Includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. See also bushing, sleeve; spacer, sleeve; and washer (as modified). Excludes:pin, hollow.

1.427 inches minimum and 1.440 inches maximum width across flats, castellated, hexagon nut style, right-hand thread direction, 3b thread class, 0.500 inches nominal nut height

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: castellated, hexagon
Nut Height: 0.500 inches nominal
Width Across Flats: 1.427 inches minimum and 1.440 inches maximum
Thread Series: un
Thread Quantity Per Inch: 16
Nominal Thread Size: 1.125 inches
Bearing Surface Type: flat
Bearing Surface Finish: 125.0 microinches
Material: steel comp 4340 overall
Material Document And Classification: mil-s-5000 mil spec single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: p-0480 fscm 06848 mfr ref 2nd treatment response 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
2578840-001A	Nut,plain,castellated,hexagon

FAQs

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

What is the FSCG of the NSN 5310-00-478-2742?

The FSCG of the NSN 5310-00-478-2742 is 5310

Does the NSN 5310-00-478-2742 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-478-2742 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 5310-00-478-2742 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-478-2742 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 5310-00-478-2742 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Mon, Jun 28, 1971