5310-01-111-2790

Find complete technical information, availability, and procurement data for: 5310-01-111-2790
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-111-2790

Item Name Code

01869

Assigment Date

04/14/1981 (45 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.

0.525 inches nominal outside diameter, 0.337 inches minimum and 0.377 inches maximum hole diameter, 0.052 inches minimum and 0.057 inches maximum internal straight key width, 0.056 inches nominal external prebent key length, 0.107 inches minimum and 0.117 inches maximum external prebent key width

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Hole Diameter: 0.337 inches minimum and 0.377 inches maximum
Outside Diameter: 0.525 inches nominal
External Prebent Key Length: 0.056 inches nominal
External Prebent Key Width: 0.107 inches minimum and 0.117 inches maximum
Internal Straight Key Width: 0.052 inches minimum and 0.057 inches maximum
Distance From Centerline To Top Of Internal Key: 0.317 inches minimum and 0.352 inches maximum
Distance From Centerline To Inside Of Prebent Key: 0.263 inches nominal
Overall Distance Including Keys: 0.605 inches nominal
Material Thickness: 0.035 inches nominal
Material: steel comp 303 overall
Style Designator: key

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
017-10036	Key Washer
5265909-001	Key Washer

FAQs

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

What is the FSCG of the NSN 5310-01-111-2790?

The FSCG of the NSN 5310-01-111-2790 is 5310

Does the NSN 5310-01-111-2790 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-01-111-2790 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 5310-01-111-2790 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-111-2790 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 5310-01-111-2790 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Tue, Apr 14, 1981