5310-00-493-4020

Find complete technical information, availability, and procurement data for: 5310-00-493-4020
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for NSN 5310-00-493-4020 to receive an up to date pricing and availability quote by email.

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.

3b thread class, hexagon nut style, prevailing torque all metal design locking feature, right-hand thread direction, 0.421 inches minimum and 0.469 inches maximum 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
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Below is a list of NSNs that have been officially superseded by this NSN: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