NAS1291-5

View detailed technical data, stock status, and sourcing information for: NAS1291-5
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-807-1476

Item Name Code

29730

Assigment Date

01/01/1962 (64 years ago)

A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.

prevailing torque all metal design locking feature, 3b thread class, right-hand thread direction, 0.520 inches maximum washer outside diameter, dry film lubricant lubrication

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: 0.520 inches maximum
Lubrication: dry film lubricant
Overall Height: 0.251 inches minimum and 0.266 inches maximum
Nut Style: hexagon
Washer Thickness: 0.023 inches minimum
Width Across Flats: 0.367 inches minimum and 0.378 inches maximum
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unjf
Thread Quantity Per Inch: 24
Hardness Rating: 49.0 rockwell c maximum
Nominal Thread Size: 0.312 inches
Material: steel overall
Surface Treatment: cadmium and chromate 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Below is a list of NSNs that have been officially superseded by this NSN: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
5310-00-393-7703	No Name Available	01/01/1984
5310-00-680-4982	No Name Available	11/01/1976
5310-01-064-8347	No Name Available	12/01/1991

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
010210-006	Extended Washer Self-Locking Nut
10121717	Extended Washer Self-Locking Nut
2628856	Extended Washer Self-Locking Nut
5310PL0141537	Extended Washer Self-Locking Nut
984050	Extended Washer Self-Locking Nut
CIPRD-MS21042-L5	Extended Washer Self-Locking Nut
FN12M054	Extended Washer Self-Locking Nut
H14-5	Extended Washer Self-Locking Nut
MS21042-L5	Extended Washer Self-Locking Nut
MS21042L5	Extended Washer Self-Locking Nut
NAS1291-5	Extended Washer Self-Locking Nut
NAS679A5	Extended Washer Self-Locking Nut
RM52LH3324-054	Extended Washer Self-Locking Nut
T6S524	Extended Washer Self-Locking Nut
T98S524	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-807-1476?

The FSCG of the NSN 5310-00-807-1476 is 5310

Does the NSN 5310-00-807-1476 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-807-1476 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 5310-00-807-1476 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-807-1476 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 5310-00-807-1476 was assigned to the Federal Catalog?

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