NAS1291C5M

View detailed technical data, stock status, and sourcing information for: NAS1291C5M
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-882-6479

Item Name Code

29730

Assigment Date

01/01/1962 (64 years ago)

prevailing torque all metal design locking feature, right-hand thread direction, 3b thread class, 0.520 inches nominal washer outside diameter, 0.253 inches minimum and 0.266 inches maximum overall height

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 nominal
Overall Height: 0.253 inches minimum and 0.266 inches maximum
Nut Style: hexagon
Washer Thickness: 0.022 inches nominal
Width Across Flats: 0.367 inches minimum and 0.378 inches maximum
Temp Rating: 550.0 fahrenheit nominal
Thread Series: unf
Thread Quantity Per Inch: 24
Nominal Thread Size: 0.312 inches
Material: steel corrosion resisting overall
Surface Treatment: passivate overall
Specification/Standard Data: 80205-nas1291 government standard

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-706-9048	No Name Available	07/26/1968
5310-01-033-4367	No Name Available	09/04/1991
5310-01-234-2578	No Name Available	07/01/1991

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
10121793	Extended Washer Self-Locking Nut
403130135	Extended Washer Self-Locking Nut
525-595-9107	Extended Washer Self-Locking Nut
860292-0009	Extended Washer Self-Locking Nut
860292-9	Extended Washer Self-Locking Nut
BH00205-5	Extended Washer Self-Locking Nut
CX188512	Extended Washer Self-Locking Nut
FN1014M-524	Extended Washer Self-Locking Nut
FN1014N524	Extended Washer Self-Locking Nut
H42-5	Extended Washer Self-Locking Nut
NAS1291C5M	Extended Washer Self-Locking Nut
P32335	Extended Washer Self-Locking Nut
RMLH3858-054	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-882-6479?

The FSCG of the NSN 5310-00-882-6479 is 5310

Does the NSN 5310-00-882-6479 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-882-6479 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 5310-00-882-6479 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-882-6479 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 5310-00-882-6479 was assigned to the Federal Catalog?

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