5310-00-297-3722

Find complete technical information, availability, and procurement data for: 5310-00-297-3722
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-297-3722

Item Name Code

29729

Assigment Date

01/01/1963 (63 years ago)

3b thread class, 0.771 inches minimum and 0.781 inches maximum washer outside diameter, right-hand thread direction, 0.516 inches nominal overall height, prevailing torque with nonmetallic insert locking feature

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 with nonmetallic insert
Washer Outside Diameter: 0.771 inches minimum and 0.781 inches maximum
Overall Height: 0.516 inches nominal
Nut Style: double hexagon
Washer Thickness: 0.107 inches nominal
Width Across Flats: 0.550 inches minimum and 0.565 inches maximum
Temp Rating: 250.0 fahrenheit nominal
Thread Series: unjf
Thread Quantity Per Inch: 20
Nominal Thread Size: 0.438 inches
Material: plastic polyamide (nylon) locking insert
Material: steel comp 4130 or steel comp 4340 or steel comp 3140 or steel comp 8740 nut
Material Document And Classification: aisi assn std all material responses nut
Surface Treatment: cadmium overall except insert
Surface Treatment Document And Classification: qq-p-416,ty 1,cl 3 fed spec single treatment response overall except insert

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-275-0705	No Name Available	01/01/1961
5310-00-595-9779	No Name Available	03/22/1968

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
12371-7	Extended Washer Self-Locking Nut
12NH-7	Extended Washer Self-Locking Nut
69973-4	Extended Washer Self-Locking Nut
BH00163-7	Extended Washer Self-Locking Nut
DHN 35-7	Extended Washer Self-Locking Nut
EB-070	Extended Washer Self-Locking Nut
EB-720	Extended Washer Self-Locking Nut
EB070	Extended Washer Self-Locking Nut
EB720	Extended Washer Self-Locking Nut
SS5088-06	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-297-3722?

The FSCG of the NSN 5310-00-297-3722 is 5310

Does the NSN 5310-00-297-3722 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-297-3722 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 5310-00-297-3722 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-297-3722 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 5310-00-297-3722 was assigned to the Federal Catalog?

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