4820-00-495-2643

Find complete technical information, availability, and procurement data for: 4820-00-495-2643
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-495-2643

Item Name Code

36944

Assigment Date

06/18/1971 (55 years ago)

A circular item, usually having a flat or grooved flange, boss(es), and/or counterbore, designed to accommodate the end of the spring. It is used to position the spring but does not encase the spring or restrain lateral motion. It may be used in conjunction with a retainer,helical compression spring. Excludes:washer (as modified), seat,ball socket, and holder,spring. See also rotor,engine poppet valve.

aluminum alloy,2.500 in. od,0.880 in. thk,0.252 in. id center hole special features

Product Characteristics

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

Special Features: aluminum alloy,2.500 in. od,0.880 in. thk,0.252 in. id center hole

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
740879	Valve Piston
740879-1	Valve Piston

FAQs

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

What is the FSCG of the NSN 4820-00-495-2643?

The FSCG of the NSN 4820-00-495-2643 is 4820

Does the NSN 4820-00-495-2643 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-495-2643 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 4820-00-495-2643 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-495-2643 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 4820-00-495-2643 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Fri, Jun 18, 1971