4820-01-445-4642

Find complete technical information, availability, and procurement data for: 4820-01-445-4642
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-445-4642

Item Name Code

20520

Assigment Date

06/03/1997 (29 years ago)

A shaped metallic item designed to increase the effectiveness of radio frequency/electromagnetic interference, or a nonmetallic item containing a wire mesh, metal, or other electrically conductive particles designed to provide environmental sealing and radio frequency/electromagnetic interference shielding. For bulk items see wire mesh, knitted or gasketing material, conductive.

spring disk loading method, 4920-01-347-1666 end item identification, disk flow control device, automatic valve operation method

Product Characteristics

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

Flow Control Device: disk
Disk Loading Method: spring
End Item Identification: 4920-01-347-1666
Valve Operation Method: automatic

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
DAA7221A147	Restrictor Check Valve
DAA7221A147-001	Restrictor Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-445-4642?

The FSCG of the NSN 4820-01-445-4642 is 4820

Does NSN 4820-01-445-4642 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 4820-01-445-4642 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-445-4642 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 4820-01-445-4642 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Tue, Jun 3, 1997