5310-01-240-2663

Find complete technical information, availability, and procurement data for: 5310-01-240-2663
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-240-2663

Item Name Code

29736

Assigment Date

09/11/1986 (39 years ago)

A washer of nonresilient material usually having two parallel bearing surfaces. The outside and/or inside edges have one or more protuberances. The ends and/or edges may be prebent at any angle or the protuberances may be prebent at any angle to the bearing surfaces. The keys or lugs may be fitted into keyways in adjacent material or they may be bent over after application to hold or lock one or more items in place. Excludes:thrust type washer.

0.660 inches maximum washer outside diameter, prevailing torque all metal design locking feature, right-hand thread direction, 0.413 inches minimum and 0.423 inches maximum nut counterbore diameter, 3b thread class

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: 0.660 inches maximum
Counterbore Diameter: 0.413 inches minimum and 0.423 inches maximum nut
Overall Height: 0.351 inches nominal
Nut Style: flat with turned up edge
Width Across Flats: 0.430 inches minimum and 0.439 inches maximum
Thread Series: unjf
Thread Quantity Per Inch: 24
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum
Nominal Thread Size: 0.3750 inches
Special Features: double hexagon wrenching element
Material: steel comp 4340 overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty 2 cl 2 fed spec single treatment response 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
TLN1001D3-6	Assembled Washe Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-240-2663?

The FSCG of the NSN 5310-01-240-2663 is 5310

Does the NSN 5310-01-240-2663 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-240-2663 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 5310-01-240-2663 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-240-2663 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 5310-01-240-2663 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Thu, Sep 11, 1986