5340-00-395-2421

Find complete technical information, availability, and procurement data for: 5340-00-395-2421
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-00-395-2421

Item Name Code

11251

Assigment Date

04/12/1974 (52 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.

nickel surface treatment, safety chain attached 3.380 in. min,3.620 in. max lg special features, steel material, 3 prong quantity, 1.250 inches nominal hole accommodation diameter

Product Characteristics

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

Hole Accommodation Diameter: 1.250 inches nominal
Prong Quantity: 3
Special Features: safety chain attached 3.380 in. min,3.620 in. max lg
Material: steel
Surface Treatment: nickel
Style Designator: standard

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
102C280-1	Plug Button

FAQs

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

What is the FSCG of the NSN 5340-00-395-2421?

The FSCG of the NSN 5340-00-395-2421 is 5340

Does NSN 5340-00-395-2421 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 5340-00-395-2421 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-00-395-2421 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5340-00-395-2421 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Fri, Apr 12, 1974