PRV55A AND 280101-111

View detailed technical data, stock status, and sourcing information for: PRV55A AND 280101-111
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-307-2888

Item Name Code

05488

Assigment Date

09/08/1989 (36 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.

0.500 inches all ends nominal pipe size accommodated, unthreaded internal pipe all ends connection type, socket with brazing ring all ends connection style, 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.

Nominal Pipe Size Accommodated: 0.500 inches all ends
Flow Control Device: disk
Connection Style: socket with brazing ring all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal pipe all ends
Adjustable Pressure Range: +70.0 to 190.0 pounds per square inch
Material: copper alloy body
Material: plastic polytetrafluoroethylene seat
Material: steel corrosion resisting flow control device
Media For Which Designed: water-oil-gas single response
Style Designator: angle

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
280101-0111	Safety Relief Valve
280101-111	Safety Relief Valve
PRV55A AND 280101-111	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-307-2888?

The FSCG of the NSN 4820-01-307-2888 is 4820

Does the NSN 4820-01-307-2888 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-307-2888 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 4820-01-307-2888 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-307-2888 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 4820-01-307-2888 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Fri, Sep 8, 1989