4820-01-131-5919

Find complete technical information, availability, and procurement data for: 4820-01-131-5919
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-131-5919

Item Name Code

05488

Assigment Date

05/13/1982 (44 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.

inside spring bonnet type, disk flow control device, 450.0 fahrenheit single response maximum operating temp, bolted bonnet attachment method, automatic valve operation method

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
Bonnet Type: inside spring
Bonnet Attachment Method: bolted
Maximum Operating Temp: 450.0 fahrenheit single response
Valve Operation Method: automatic
Flange Shape: round all ends
Connection Type: flange all ends
Valve Size: 0.500 inches
Adjustable Pressure Range: +25.0 to 29.0 pounds per square inch
Maximum Operating Pressure: 150.0 pounds per square inch single response
Nominal Outside Diameter: 3.500 inches all ends
Nominal Thickness: 0.376 inches all ends
First Connection Face To Centerline Distance: 3.250 inches
Second Connection Face To Centerline Distance: 3.250 inches
Flange Face Design: raised straight all ends
Raised Face Nominal Height: 0.062 inches all ends
Raised Face Nominal Diameter: 1.375 inches all ends
Material: nickel alloy or steel corrosion resisting flow control device
Material: nickel alloy or steel corrosion resisting seat
Material: steel body
Material: steel corrosion resisting stem
Material Document And Classification: astm a216,grade wcb assn std single material response body
Media For Which Designed: oil 1st response
Media For Which Designed: steam 2nd response
Media For Which Designed: water, fresh 3rd response
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
9665E51SS	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-131-5919?

The FSCG of the NSN 4820-01-131-5919 is 4820

Does the NSN 4820-01-131-5919 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-131-5919 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 4820-01-131-5919 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-131-5919 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 4820-01-131-5919 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Thu, May 13, 1982