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

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