5310002982748

View detailed technical data, stock status, and sourcing information for: 5310002982748
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-493-4020

Item Name Code

05277

Assigment Date

02/20/1970 (56 years ago)

A washer or cone or disk shape with a centrally located hole, designed to accommodate a flat or oval head screw and provide additional bearing area on the material being fastened. It may or may not have a flush flange feature.

0.421 inches minimum and 0.469 inches maximum nut height, hexagon nut style, prevailing torque all metal design locking feature, 3b thread class, right-hand thread direction

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
Locking Feature: prevailing torque all metal design
Nut Style: hexagon
Nut Height: 0.421 inches minimum and 0.469 inches maximum
Width Across Flats: 0.679 inches minimum and 0.690 inches maximum
Temp Rating: 1200.0 fahrenheit nominal
Thread Series: unjf
Thread Quantity Per Inch: 20
Nominal Thread Size: 0.438 inches
Countersink Angle: 88.0 degrees nominal nut
Bearing Surface Type: chamfered
Bearing Surface Finish: 125.0 microinches
Material: steel uns s34720 or steel uns s34723 overall
Material Document And Classification: ams 5642 s34720/s34723 assn std single material response overall
Precious Material And Location: all surfaces silver
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Below is a list of NSNs that have been officially superseded by this NSN: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
5310-00-298-2748	No Name Available	04/01/1984
5310-00-596-5811	No Name Available	02/01/1983

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
1802-070U	Hexagon Self-Locking Nut
5310002982748	Hexagon Self-Locking Nut
MS20500-720A	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-493-4020?

The FSCG of the NSN 5310-00-493-4020 is 5310

Does the NSN 5310-00-493-4020 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-493-4020 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 5310-00-493-4020 contain precious materials?

Item contains silver.

Does NSN 5310-00-493-4020 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 5310-00-493-4020 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Fri, Feb 20, 1970