5310-00-721-7739

Find complete technical information, availability, and procurement data for: 5310-00-721-7739
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-721-7739

Item Name Code

15892

Assigment Date

01/01/1963 (63 years ago)

A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.

3b thread class, right-hand thread direction, 0.254 inches nominal pilot diameter, prevailing torque with nonmetallic insert locking feature, 0.060 inches nominal pilot length

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
Pilot Diameter: 0.254 inches nominal
Pilot Length: 0.060 inches nominal
Counterbore Diameter: 0.210 inches minimum and 0.215 inches maximum nut
Nut Style: clinch
Nut Diameter: 0.344 inches nominal
Nut Height: 0.239 inches nominal
Nut Counterbore Depth: 0.060 inches nominal nut
Temp Rating: 350.0 fahrenheit nominal
Thread Series: unf
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.190 inches
Material: plastic polyhexamethylene amide or plastic polycaprolactam locking insert
Material: steel nut
Material Document And Classification: mil-m-20693 mil spec all material responses locking insert
Surface Treatment: cadmium overall except insert
Surface Treatment Document And Classification: qq-p-416,ty 2,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Below is a list of NSNs that have been officially superseded by this NSN: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
5310-00-731-3354	No Name Available	01/01/1963
7490-00-920-4102	No Name Available	08/29/1966
5310-00-936-6156	No Name Available	02/19/1971

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
02S111233-20	Clinch Self-Locking Nut
107079-10	Clinch Self-Locking Nut
12-515-50-110	Clinch Self-Locking Nut
333-0846-000	Clinch Self-Locking Nut
5260-10	Clinch Self-Locking Nut
F12NCFMA2-02	Clinch Self-Locking Nut
F12NCFMA2-1032	Clinch Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-721-7739?

The FSCG of the NSN 5310-00-721-7739 is 5310

Does the NSN 5310-00-721-7739 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-721-7739 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 5310-00-721-7739 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-721-7739 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 5310-00-721-7739 was assigned to the Federal Catalog?

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