5310-00-973-8539

Find complete technical information, availability, and procurement data for: 5310-00-973-8539
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-973-8539

Item Name Code

05277

Assigment Date

01/01/1962 (64 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.

3b thread class, 0.070 inches nominal nut height, hexagon nut style, prevailing torque all metal design or prevailing torque with nonmetallic insert 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 or prevailing torque with nonmetallic insert
Nut Style: hexagon
Nut Height: 0.070 inches nominal
Width Across Flats: 0.181 inches minimum and 0.190 inches maximum
Thread Series: unc
Thread Quantity Per Inch: 40
Nominal Thread Size: 0.112 inches
Bearing Surface Type: flat or chamfered
Material: aluminum alloy 2011 or plastic polyamide (nylon) overall
Material Document And Classification: 2611-t3 assn std single material response overall
Surface Treatment: anodize overall
Surface Treatment Document And Classification: mil-c-554 mil 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
1791712-3	Hexagon Self-Locking Nut
N900077-4	Hexagon Self-Locking Nut
QQA365C	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-973-8539?

The FSCG of the NSN 5310-00-973-8539 is 5310

Does NSN 5310-00-973-8539 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 5310-00-973-8539 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-973-8539 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 5310-00-973-8539 was assigned to the Federal Catalog?

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