2578490

View detailed technical data, stock status, and sourcing information for: 2578490
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Federal Supply Group

Instruments and Laboratory Equipment

Federal Supply Classification

6645 Time Measuring Instruments

National Stock Number

6645-01-428-3576

Item Name Code

18695

Assigment Date

03/25/1996 (30 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.

6645-01-428-3576, chronometer

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
2578490	Chronometer

FAQs

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

What is the FSCG of the NSN 6645-01-428-3576?

The FSCG of the NSN 6645-01-428-3576 is 6645

Does the NSN 6645-01-428-3576 have a Schedule B code assigned?

Yes, the Schedule B code is 9105990000

Does NSN 6645-01-428-3576 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 6645-01-428-3576 contain precious materials?

Item does not contain precious metal.

Does NSN 6645-01-428-3576 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 6645-01-428-3576 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Mon, Mar 25, 1996