65571-720

View detailed technical data, stock status, and sourcing information for: 65571-720
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-057-3563

Item Name Code

29729

Assigment Date

06/06/1967 (59 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, right-hand thread direction, 0.430 inches maximum overall height, 3b thread class, 0.750 inches maximum washer outside diameter

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: 0.750 inches maximum
Overall Height: 0.430 inches maximum
Nut Style: double hexagon
Washer Thickness: 0.080 inches minimum
Width Across Flats: 0.492 inches minimum and 0.502 inches maximum
Thread Series: unjf
Thread Quantity Per Inch: 20
Hardness Rating: 40.0 rockwell c minimum and 47.0 rockwell c maximum
Nominal Thread Size: 0.438 inches
Material: steel comp h11 overall
Material Document And Classification: ams 6485 assn std single material response overall
Surface Treatment: silver overall
Surface Treatment Document And Classification: qq-s-365 fed spec single 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
215-72434-2	Extended Washer Self-Locking Nut
65571-720	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-057-3563?

The FSCG of the NSN 5310-00-057-3563 is 5310

Does the NSN 5310-00-057-3563 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-057-3563 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 5310-00-057-3563 contain precious materials?

Item contains silver.

Does NSN 5310-00-057-3563 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 5310-00-057-3563 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Tue, Jun 6, 1967