5310-01-068-5525

Find complete technical information, availability, and procurement data for: 5310-01-068-5525
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-068-5525

Item Name Code

15890

Assigment Date

11/28/1978 (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.

2b thread class, 4.750 inches nominal nut length, plain, rectangular nut style, right-hand thread direction, 0.500 inches minimum and 0.510 inches maximum nut counterbore 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: 2b
Thread Direction: right-hand
Counterbore Diameter: 0.500 inches minimum and 0.510 inches maximum nut
Nut Style: plain, rectangular
Nut Length: 4.750 inches nominal
Nut Height: 0.500 inches nominal
Nut Width: 1.000 inches nominal
Nut Counterbore Depth: 0.130 inches nominal nut
Thread Series: unf
Thread Quantity Per Inch: 20
Nominal Thread Size: 0.500 inches
Material: steel comp 1018 overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 3 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
2645603	Rectangular Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-068-5525?

The FSCG of the NSN 5310-01-068-5525 is 5310

Does the NSN 5310-01-068-5525 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-068-5525 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 5310-01-068-5525 contain precious materials?

Precious metal content is unknown

Does NSN 5310-01-068-5525 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 5310-01-068-5525 was assigned to the Federal Catalog?

It was assigned 47 years ago, on Tue, Nov 28, 1978