3012674

View detailed technical data, stock status, and sourcing information for: 3012674
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-891-6502

Item Name Code

29730

Assigment Date

04/19/1968 (58 years ago)

0.240 inches minimum and 0.255 inches maximum overall height, 0.350 inches maximum washer outside diameter, 3b thread class, prevailing torque all metal design locking feature, right-hand thread direction

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: 0.350 inches maximum
Overall Height: 0.240 inches minimum and 0.255 inches maximum
Nut Style: hexagon
Washer Thickness: 0.030 inches nominal
Width Across Flats: 0.243 inches minimum and 0.252 inches maximum
Thread Series: unjf
Thread Quantity Per Inch: 32
Hardness Rating: 38.0 rockwell c minimum and 48.0 rockwell c maximum
Nominal Thread Size: 0.190 inches
Material: steel comp 8740 overall
Material Document And Classification: ams 6322 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: ams 2400 assn std 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Below is a list of NSNs that have been officially superseded by this NSN: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
5310-00-889-7274	No Name Available	09/01/1996
5310-01-168-9000	No Name Available	09/01/1996
5310-01-525-4394	No Name Available	07/01/2010

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
3005816	Extended Washer Self-Locking Nut
3012674	Extended Washer Self-Locking Nut
3012675	Extended Washer Self-Locking Nut
H29691-3	Extended Washer Self-Locking Nut
H29691X-3	Extended Washer Self-Locking Nut
LH8980-3	Extended Washer Self-Locking Nut
Z00.N7228510102TBM	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-891-6502?

The FSCG of the NSN 5310-00-891-6502 is 5310

Does the NSN 5310-00-891-6502 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-891-6502 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 5310-00-891-6502 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-891-6502 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 5310-00-891-6502 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Fri, Apr 19, 1968