820-4445890-7

View detailed technical data, stock status, and sourcing information for: 820-4445890-7
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-505-0989

Item Name Code

27828

Assigment Date

07/20/1974 (52 years ago)

A cylindrical item of various configurations which reciprocates in a valve body, assisting in the movement of the disk to open or close a valve. May include additional components such as ring(s), collar(s), spring(s) and the like. Excludes:disk, valve.

zzzy criticality code justification, selected and tested for nuclear propulsion plant systems reference number differentiating characteristics

Product Characteristics

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

Criticality Code Justification: zzzy
Reference Number Differentiating Characteristics: selected and tested for nuclear propulsion plant systems

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
820-4445890-7	Lift-Check Valve
820-4445890-7REVC	Lift-Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-505-0989?

The FSCG of the NSN 4820-00-505-0989 is 4820

Does NSN 4820-00-505-0989 require demilitarization?

Usml or ccl military items - demil required. Item managers,, equipment specialists, or product specialists must furnish special demilinstructions. (note 3).

Does NSN 4820-00-505-0989 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-505-0989 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 4820-00-505-0989 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Sat, Jul 20, 1974