4820-01-420-1071

Find complete technical information, availability, and procurement data for: 4820-01-420-1071
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-420-1071

Item Name Code

05483

Assigment Date

10/06/1995 (30 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.

right-hand 1st end thread direction, threaded internal pipe 1st end connection type, plain,optional end(pipe) 1st end connection style, packing retaining bonnet type, manual 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.

Thread Direction: right-hand 1st end
Bonnet Type: packing retaining
Connection Style: plain,optional end(pipe) 1st end
Valve Operation Method: manual
Connection Type: threaded internal pipe 1st end
Maximum Operating Pressure: 250.0 pounds per square inch 1st response
Maximum Operating Pressure: 400.0 pounds per square inch 2nd response
Nominal Thread Size: 0.500 inches 1st end
Material: copper alloy 836 body
Media For Which Designed: steam 1st response
Media For Which Designed: water-oil-gas 2nd response
Style Designator: angle
Thread Series Designator: npt 1st end
Furnished Items And Quantity: 1 plugged drain

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
946A	Angle Valve

FAQs

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

What is the FSCG of the NSN 4820-01-420-1071?

The FSCG of the NSN 4820-01-420-1071 is 4820

Does NSN 4820-01-420-1071 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 4820-01-420-1071 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-420-1071 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 4820-01-420-1071 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Fri, Oct 6, 1995