NAS1291-6

View detailed technical data, stock status, and sourcing information for: NAS1291-6
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-833-2239

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.

right-hand thread direction, 0.269 inches minimum and 0.282 inches maximum overall height, prevailing torque all metal design locking feature, 3b thread class, 0.620 inches nominal 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: 0.620 inches nominal
Overall Height: 0.269 inches minimum and 0.282 inches maximum
Nut Style: hexagon
Washer Thickness: 0.030 inches nominal
Width Across Flats: 0.430 inches minimum and 0.440 inches maximum
Temp Rating: 550.0 fahrenheit nominal
Thread Series: unf
Thread Quantity Per Inch: 24
Nominal Thread Size: 0.375 inches
Material: steel overall
Surface Treatment: cadmium 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
10437720	Extended Washer Self-Locking Nut
NAS1291-6	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-833-2239?

The FSCG of the NSN 5310-00-833-2239 is 5310

Does the NSN 5310-00-833-2239 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-833-2239 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 5310-00-833-2239 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-833-2239 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 5310-00-833-2239 was assigned to the Federal Catalog?

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