4820-00-923-4431

Find complete technical information, availability, and procurement data for: 4820-00-923-4431
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-923-4431

Item Name Code

05488

Assigment Date

01/17/1966 (60 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, 7.0 gallons per minute valve discharge flow rate, poppet flow control device, 3b 1st end thread class, spring disk loading method

Product Characteristics

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

Thread Class: 3b 1st end
Thread Direction: right-hand 1st end
Flow Control Device: poppet
Disk Loading Method: spring
Valve Discharge Flow Rate: 7.0 gallons per minute
Connection Style: flare(tube) 1st end
Connection Type: threaded internal boss 1st end
Maximum Operating Pressure: 115.0 pounds per square inch single response
Nominal Thread Size: 0.563 inches 1st end
Nominal Outside Diameter Tube Accommodated: 0.563 inches 1st end
Media For Which Designed: hydraulic fluid, petroleum base single response
Surface Treatment: anodize
Surface Treatment Document And Classification: mil-a-8625 mil spec single treatment response
Style Designator: straight thru
Thread Series Designator: unf 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
114HS123-4	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-923-4431?

The FSCG of the NSN 4820-00-923-4431 is 4820

Does the NSN 4820-00-923-4431 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-923-4431 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 4820-00-923-4431 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-923-4431 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 4820-00-923-4431 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Mon, Jan 17, 1966