4820-00-421-5789

Find complete technical information, availability, and procurement data for: 4820-00-421-5789
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-421-5789

Item Name Code

77777

Assigment Date

02/05/1972 (54 years ago)

material will be in accordance with navicp mech; activity hx quality control, manufacturing and testing specifications. reference number differentiating characteristics, zzzy criticality code justification

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: material will be in accordance with navicp mech; activity hx quality control, manufacturing and testing specifications.

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-956-7893	No Name Available	11/01/1976

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
20174REVAPC6	Valve Disk Assembly
A7915.003	Valve Disk Assembly
A7915.003/20174	Valve Disk Assembly

FAQs

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

What is the FSCG of the NSN 4820-00-421-5789?

The FSCG of the NSN 4820-00-421-5789 is 4820

Does the NSN 4820-00-421-5789 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-421-5789 require demilitarization?

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

Does NSN 4820-00-421-5789 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-421-5789 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 4820-00-421-5789 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Sat, Feb 5, 1972