5310-00-959-4688

Find complete technical information, availability, and procurement data for: 5310-00-959-4688
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-959-4688

Item Name Code

21824

Assigment Date

01/01/1962 (64 years ago)

recessed nut style, 3b thread class, 0.274 inches minimum and 0.294 inches maximum overall height, right-hand thread direction, 0.460 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
Washer Outside Diameter: 0.460 inches maximum
Overall Height: 0.274 inches minimum and 0.294 inches maximum
Nut Style: recessed
Nut Height: 0.263 inches nominal
Width Across Flats: 0.274 inches minimum and 0.284 inches maximum
Thread Series: unf
Thread Quantity Per Inch: 28
Nominal Thread Size: 0.250 inches
Material: steel washer
Material: steel comp 8740 or steel comp 4340 nut
Material Document And Classification: mil-s-6049 mil spec 1st material response or mil-s-5000 mil spec 2nd material response nut
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,ty 2,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Below is a list of NSNs that have been officially superseded by this NSN: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
5310-00-731-0274	No Name Available	02/02/1968
5310-01-155-1910	No Name Available	05/01/1994

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
55342-428	Assembled Washer Plain Nut
BACHN10HY4M	Assembled Washer Plain Nut
BACN10FZ4	Assembled Washer Plain Nut
BACN10HY	Assembled Washer Plain Nut
HW19702-4	Assembled Washer Plain Nut
LH6094-048	Assembled Washer Plain Nut
TLN1000-4	Assembled Washer Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-959-4688?

The FSCG of the NSN 5310-00-959-4688 is 5310

Does the NSN 5310-00-959-4688 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-959-4688 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 5310-00-959-4688 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-959-4688 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 5310-00-959-4688 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962