4820-00-131-1745

Find complete technical information, availability, and procurement data for: 4820-00-131-1745
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-131-1745

Item Name Code

05488

Assigment Date

12/09/1968 (57 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.

plain,optional end(pipe) 2nd end connection style, right-hand all ends thread direction, spring disk loading method, ball flow control device, grumman aircraft,model a10 end item identification

Product Characteristics

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

Thread Direction: right-hand all ends
Flow Control Device: ball
Disk Loading Method: spring
End Item Identification: grumman aircraft,model a10
Connection Style: plain,optional end(pipe) 2nd end
Connection Style: plain,optional end(pipe) 1st end
Valve Operation Method: automatic
Connection Type: threaded internal pipe 1st end
Connection Type: threaded internal pipe 2nd end
Nominal Thread Size: 0.125 inches 2nd end
Nominal Thread Size: 0.250 inches 1st end
Opening Pressure Setting: 175.0 pounds per square inch
Material: copper alloy body
Material: copper alloy stem
Material: rubber synthetic packing
Material: steel flow control device
Style Designator: angle
Thread Series Designator: npt 2nd end
Thread Series Designator: npt 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
5AC12195	Safety Relief Valve
H15-1377-4	Safety Relief Valve
H15-819-1	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-131-1745?

The FSCG of the NSN 4820-00-131-1745 is 4820

Does the NSN 4820-00-131-1745 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-131-1745 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 4820-00-131-1745 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-131-1745 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 4820-00-131-1745 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Mon, Dec 9, 1968