5310-00-857-4987

Find complete technical information, availability, and procurement data for: 5310-00-857-4987
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-857-4987

Item Name Code

29729

Assigment Date

01/01/1962 (64 years ago)

prevailing torque all metal design locking feature, 3b thread class, 0.230 inches nominal overall height, right-hand thread direction, 0.438 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: 0.438 inches nominal
Overall Height: 0.230 inches nominal
Nut Style: double hexagon
Washer Thickness: 0.030 inches nominal
Width Across Flats: 0.304 inches minimum and 0.313 inches maximum
Thread Series: unf
Thread Quantity Per Inch: 28
Nominal Thread Size: 0.250 inches
Material: steel overall
Surface Treatment: cadmium overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-901-3593	No Name Available	03/01/1979
5310-00-913-0566	No Name Available	09/01/1983

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
395034	Extended Washer Self-Locking Nut
DSR1196-2	Extended Washer Self-Locking Nut
FN22-428	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-857-4987?

The FSCG of the NSN 5310-00-857-4987 is 5310

Does the NSN 5310-00-857-4987 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-857-4987 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 5310-00-857-4987 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-857-4987 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 5310-00-857-4987 was assigned to the Federal Catalog?

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