42FW720

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-272-6417

Item Name Code

29729

Assigment Date

01/01/1963 (63 years ago)

A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.

prevailing torque all metal design locking feature, 0.518 inches minimum and 0.533 inches maximum overall height, 3b thread class, 0.781 inches maximum washer outside diameter, 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
Washer Outside Diameter: 0.781 inches maximum
Overall Height: 0.518 inches minimum and 0.533 inches maximum
Nut Style: double hexagon
Washer Thickness: 0.107 inches nominal
Width Across Flats: 0.556 inches minimum and 0.564 inches maximum
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unf
Thread Quantity Per Inch: 20
Nominal Thread Size: 0.438 inches
Material: steel comp 8630 overall
Material Document And Classification: ams 6280 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,ty 1,cl 3 fed spec 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Below is a list of NSNs that have been officially superseded by this NSN: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
5310-00-596-5997	No Name Available	05/18/1967

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
10609687-1	Extended Washer Self-Locking Nut
33A7-070	Extended Washer Self-Locking Nut
42FW720	Extended Washer Self-Locking Nut
ZEB1845-070	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-272-6417?

The FSCG of the NSN 5310-00-272-6417 is 5310

Does the NSN 5310-00-272-6417 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-272-6417 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 5310-00-272-6417 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-272-6417 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 5310-00-272-6417 was assigned to the Federal Catalog?

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