4820-01-331-8674

Find complete technical information, availability, and procurement data for: 4820-01-331-8674
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-331-8674

Item Name Code

05488

Assigment Date

12/29/1990 (35 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.

automatic or manual valve operation method, flange all ends connection type, 8 1st end bolt hole quantity, round with holes all ends flange shape, 1.500 inches valve size

Product Characteristics

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

Bolt Hole Quantity: 8 1st end
Valve Operation Method: automatic or manual
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 1.500 inches
Opening Pressure Setting: 2500.0 pounds per square inch
Nominal Outside Diameter: 7.500 inches 1st end
Bolt Hole Nominal Diameter: 0.875 inches 1st end
Bolt Circle Nominal Diameter: 5.875 inches 1st end
Style Designator: angle flanged ends

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
26DA16-140/S4/SP-2500PSI	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-331-8674?

The FSCG of the NSN 4820-01-331-8674 is 4820

Does the NSN 4820-01-331-8674 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-331-8674 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 4820-01-331-8674 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-331-8674 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 4820-01-331-8674 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Sat, Dec 29, 1990