FIG1028

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-391-5879

Item Name Code

05485

Assigment Date

06/15/1994 (32 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.

4 all ends bolt hole quantity, bolted bonnet attachment method, outside screw-yoke bonnet type, disk flow control device, 100.0 fahrenheit single response maximum operating temp

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: outside screw-yoke
Bonnet Attachment Method: bolted
Bolt Hole Quantity: 4 all ends
Maximum Operating Temp: 100.0 fahrenheit single response
Valve Operation Method: manual
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 1.500 inches
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Outside Diameter: 7.000 inches all ends
Face To Face Distance: 12.000 inches
Nominal Thickness: 1.250 inches all ends
Bolt Hole Nominal Diameter: 1.125 inches all ends
Bolt Circle Nominal Diameter: 4.875 inches all ends
Flange Face Design: raised straight all ends
Raised Face Nominal Height: 0.250 inches
Raised Face Nominal Diameter: 2.875 inches
Material: steel body
Material: steel corrosion resisting flow control device
Style Designator: straight thru flanged ends
Furnished Items And Quantity: 1 handwheel

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
FIG1028	Globe Valve

FAQs

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

What is the FSCG of the NSN 4820-01-391-5879?

The FSCG of the NSN 4820-01-391-5879 is 4820

Does the NSN 4820-01-391-5879 have a Schedule B code assigned?

Yes, the Schedule B code is 8481803060

Does NSN 4820-01-391-5879 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 4820-01-391-5879 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-391-5879 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 4820-01-391-5879 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Wed, Jun 15, 1994