4820-01-056-9458

Find complete technical information, availability, and procurement data for: 4820-01-056-9458
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-056-9458

Item Name Code

05487

Assigment Date

03/03/1978 (48 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.

2a 2nd end thread class, plain (tube) 2nd end connection style, right-hand all ends thread direction, ball flow control device, plain (pipe) 1st end connection style

Product Characteristics

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

Thread Class: 2a 2nd end
Thread Direction: right-hand all ends
Flow Control Device: ball
Connection Style: plain (pipe) 1st end
Connection Style: plain (tube) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external pipe 1st end
Connection Type: threaded external tube 2nd end
Mounting Position: horizontal or vertical
Thread Quantity Per Inch: 24 2nd end
Nominal Thread Size: 0.125 inches 1st end
Nominal Thread Size: 0.438 inches 2nd end
Material: copper alloy overall
Style Designator: straight thru
Thread Series Designator: npt 1st end
Thread Series Designator: uns 2nd end

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
631X4	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-056-9458?

The FSCG of the NSN 4820-01-056-9458 is 4820

Does NSN 4820-01-056-9458 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 4820-01-056-9458 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-056-9458 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 4820-01-056-9458 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Fri, Mar 3, 1978