4820-00-122-1158

Find complete technical information, availability, and procurement data for: 4820-00-122-1158
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-122-1158

Item Name Code

05488

Assigment Date

01/01/1963 (63 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.

10.0 gallons per minute valve discharge flow rate, poppet flow control device, spring disk loading method, 3a 1st end thread class, right-hand 1st end 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: 3a 1st end
Thread Direction: right-hand 1st end
Flow Control Device: poppet
Disk Loading Method: spring
Valve Discharge Flow Rate: 10.0 gallons per minute
Connection Style: inverted flare (tube) 1st end
Valve Operation Method: automatic
Connection Type: threaded external tube 1st end
Features Provided: pressure tight outlet side
Thread Quantity Per Inch: 16 1st end
Nominal Thread Size: 0.750 inches 1st end
Opening Pressure Setting: 1800.0 pounds per square inch
Nominal Outside Diameter Tube Accommodated: 0.500 inches 1st end
Style Designator: angle
Test Data Document: "18355-1100 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
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
4231940	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-122-1158?

The FSCG of the NSN 4820-00-122-1158 is 4820

Does the NSN 4820-00-122-1158 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-122-1158 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 4820-00-122-1158 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-122-1158 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 4820-00-122-1158 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963