4820-01-172-8985

Find complete technical information, availability, and procurement data for: 4820-01-172-8985
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-172-8985

Item Name Code

05482

Assigment Date

02/28/1984 (42 years ago)

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes:valve (1), relief, pressure and temperature.

8.000 inches valve size, bolted bonnet attachment method, identical inlet relationship with outlet, manual valve operation method, rising stem type

Product Characteristics

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

Bonnet Attachment Method: bolted
Valve Operation Method: manual
Valve Size: 8.000 inches
Stem Type: rising
Inlet Relationship With Outlet: identical
Material: copper alloy body
Material: nickel alloy seat
Material: nickel alloy stem
Material Document And Classification: qq-n-281 fed spec single material response stem
Material Document And Classification: qq-c-390 fed spec single material response body
Material Document And Classification: qq-n-288 comp b fed spec single material response disk

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-461-6621	No Name Available	04/01/2016

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
1315-006E 800	Gate Valve
1315-006E CDS-1315-006-U-0002	Gate Valve
1315-006H 800	Gate Valve
803-2177917-08	Gate Valve
PI-NB2502 8IN	Gate Valve

FAQs

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

What is the FSCG of the NSN 4820-01-172-8985?

The FSCG of the NSN 4820-01-172-8985 is 4820

Does NSN 4820-01-172-8985 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 4820-01-172-8985 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-172-8985 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 4820-01-172-8985 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Tue, Feb 28, 1984