4820-01-343-8382

Find complete technical information, availability, and procurement data for: 4820-01-343-8382
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-343-8382

Item Name Code

05488

Assigment Date

08/17/1991 (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.

round with holes all ends flange shape, flange all ends connection type, 8 all ends bolt hole quantity, automatic valve operation method, disk 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.

Flow Control Device: disk
Bolt Hole Quantity: 8 all ends
Valve Operation Method: automatic
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 31.500 inches
Adjustable Pressure Range: +120.0 to 143.0 pounds per square inch
Maximum Operating Pressure: 150.0 pounds per square inch single response
Nominal Outside Diameter: 11.000 inches 1st end9.000 inches 2nd end
Face To Face Distance: 31.500 inches
Nominal Thickness: 1.000 inches 1st end0.938 inches 2nd end
Bolt Hole Nominal Diameter: 0.875 inches 1st end0.750 inches 2nd end
Bolt Circle Nominal Diameter: 9.500 inches 1st end7.500 inches 2nd end
Flange Face Design: plain all ends
Material: steel body
Style Designator: straight thru flanged ends note:to be used for valve bodies of one section only.

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
NMP-1093 OPTION-	Safety Relief Valve
NMP-1093 OPTION-B 120T143PSI	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-343-8382?

The FSCG of the NSN 4820-01-343-8382 is 4820

Does the NSN 4820-01-343-8382 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-343-8382 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 4820-01-343-8382 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-343-8382 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 4820-01-343-8382 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Sat, Aug 17, 1991