7025-00-421-4991

Find complete technical information, availability, and procurement data for: 7025-00-421-4991
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Federal Supply Group

Information Technology Equipment (Including Firmware), Software, Supplies and Support Equipment

Federal Supply Classification

7025 Information Technology Input/output and Storage Devices

National Stock Number

7025-00-421-4991

Item Name Code

77777

Assigment Date

09/20/1972 (53 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.

0.680 in. lg,0.640 in. w,0.500 in. h general characteristics item description

Product Characteristics

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

General Characteristics Item Description: 0.680 in. lg,0.640 in. w,0.500 in. h

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
586-531	Circuit Switch Module

FAQs

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

What is the FSCG of the NSN 7025-00-421-4991?

The FSCG of the NSN 7025-00-421-4991 is 7025

Does NSN 7025-00-421-4991 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 7025-00-421-4991 contain precious materials?

Item does not contain precious metal.

Does NSN 7025-00-421-4991 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 7025-00-421-4991 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Wed, Sep 20, 1972