A7911.003.000/8614

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-173-9849

Item Name Code

35224

Assigment Date

03/13/1984 (42 years ago)

An item constructed of one or more layers of thin flexible material, either laminated or separated, designed to form a tight seal between the chambers of a valve, and to transmit pressure inducted motion to a valve disk either directly or through a mechanical linkage. The surface of the item must be formed or molded to have a beaded or rolled edge, ribs or any other raised surfaces. The item may contain bolt holes and/or center holes. Excludes:diaphra gm, valve, flat and gasket.

zzzy criticality code justification, material will be in accordance with ships parts control center activity hx quality control,manufacturing and testing specifications reference number differentiating characteristics, nickel alloy or plastic acetal material, water media for which designed

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
Material: nickel alloy or plastic acetal
Media For Which Designed: water
Reference Number Differentiating Characteristics: material will be in accordance with ships parts control center activity hx quality control,manufacturing and testing specifications

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
20204 PIECE 5	Valve Disk
20206PC5	Valve Disk
8720 PC 5	Valve Disk
A7911.003.000/8614	Valve Disk

FAQs

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

What is the FSCG of the NSN 4820-01-173-9849?

The FSCG of the NSN 4820-01-173-9849 is 4820

Does the NSN 4820-01-173-9849 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-173-9849 require demilitarization?

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

Does NSN 4820-01-173-9849 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-173-9849 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 4820-01-173-9849 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Tue, Mar 13, 1984