5310-01-068-7904

Find complete technical information, availability, and procurement data for: 5310-01-068-7904
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-068-7904

Item Name Code

05280

Assigment Date

12/02/1978 (47 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

0.317 inches minimum nut counterbore diameter, 3b thread class, right-hand thread direction, 2 welding projection quantity, prevailing torque all metal design locking feature

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
Welding Projection Quantity: 2
Counterbore Diameter: 0.317 inches minimum nut
Nut Style: plate
Nut Length: 1.292 inches maximum
Nut Height: 0.328 inches maximum
Plate Thickness: 0.065 inches maximum
Plate Width: 0.485 inches minimum and 0.505 inches maximum
Nut Counterbore Depth: 0.065 inches minimum nut
Nut Mounting Provision: welding projections
Mounting Provision Location: opposite nut projection side
Temp Rating: 800.0 fahrenheit maximum
Thread Series: unjf
Thread Quantity Per Inch: 24
Hardness Rating: 49.0 rockwell c maximum
Nominal Thread Size: 0.312 inches
Material: iron alloy 660 overall
Material Document And Classification: ams 5525 assn std single material response or ams 5732 assn std single material response or ams 5737 assn std single material response overall
Precious Material And Location: all surfaces silver
Precious Material: silver
Surface Treatment: silver overall
Surface Treatment Document And Classification: ams2410 assn std 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
AN362WC524	Plate Self-Locking Nut
K1031-5P	Plate Self-Locking Nut
MS21048-5W	Plate Self-Locking Nut
R2000C5W	Plate Self-Locking Nut
T2C524PWB	Plate Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-068-7904?

The FSCG of the NSN 5310-01-068-7904 is 5310

Does the NSN 5310-01-068-7904 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-068-7904 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 5310-01-068-7904 contain precious materials?

Item contains silver.

Does NSN 5310-01-068-7904 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 5310-01-068-7904 was assigned to the Federal Catalog?

It was assigned 47 years ago, on Sat, Dec 2, 1978