4820-01-254-1510

Find complete technical information, availability, and procurement data for: 4820-01-254-1510
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-254-1510

Item Name Code

05488

Assigment Date

05/02/1987 (39 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.

3b 2nd end thread class, right-hand all ends thread direction, -40.0 fahrenheit 1st response250.0 fahrenheit 2nd response maximum operating temp, poppet flow control device, 3a 1st end thread class

Product Characteristics

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

Thread Class: 3a 1st end
Thread Class: 3b 2nd end
Thread Direction: right-hand all ends
Flow Control Device: poppet
Maximum Operating Temp: -40.0 fahrenheit 1st response250.0 fahrenheit 2nd response
Connection Style: gasket seal(boss) 2nd end
Connection Style: plain (tube) 1st end
Valve Operation Method: automatic
Connection Type: threaded external tube 1st end
Connection Type: threaded internal boss 2nd end
Thread Quantity Per Inch: 12 all ends
Maximum Operating Pressure: 2500.0 pounds per square inch single response
Nominal Thread Size: 1.312 inches all ends
Opening Pressure Setting: 20.0 pounds per square inch
Material: steel corrosion resisting body
Media For Which Designed: air 1st response
Media For Which Designed: carbon dioxide 2nd response
Media For Which Designed: oxygen, gaseous 5th response
Media For Which Designed: refrigerant 22 4th response
Media For Which Designed: refrigerant 12 3rd response
Style Designator: straight thru note: to be used for valve bodies of one section only.
Thread Series Designator: un 2nd end
Thread Series Designator: unj 1st end

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
5133T-16TB-20	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-254-1510?

The FSCG of the NSN 4820-01-254-1510 is 4820

Does the NSN 4820-01-254-1510 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-254-1510 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 4820-01-254-1510 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-254-1510 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 4820-01-254-1510 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Sat, May 2, 1987