4820-01-022-4400

Find complete technical information, availability, and procurement data for: 4820-01-022-4400
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-022-4400

Item Name Code

05488

Assigment Date

05/29/1976 (50 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.

spring disk loading method, plain (pipe) 1st end connection style, right-hand 1st end thread direction, 0.125 inches 1st end nominal pipe size accommodated, poppet flow control device

Product Characteristics

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

Nominal Pipe Size Accommodated: 0.125 inches 1st end
Thread Direction: right-hand 1st end
Flow Control Device: poppet
Disk Loading Method: spring
Connection Style: plain (pipe) 1st end
Valve Operation Method: automatic
Connection Type: threaded external pipe 1st end
Nominal Thread Size: 0.125 inches 1st end
Opening Pressure Setting: 1.5 pounds per square inch
Material: steel corrosion resisting body
Surface Treatment: passivate
Style Designator: straight thru w/baffle
Thread Series Designator: npt 1st 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
2498853-001	Safety Relief Valve
D537TP1M1-5	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-022-4400?

The FSCG of the NSN 4820-01-022-4400 is 4820

Does the NSN 4820-01-022-4400 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-022-4400 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 4820-01-022-4400 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-022-4400 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 4820-01-022-4400 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Sat, May 29, 1976