4820-01-125-3582

Find complete technical information, availability, and procurement data for: 4820-01-125-3582
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-125-3582

Item Name Code

05488

Assigment Date

01/26/1982 (44 years ago)

A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. Thermostatically operated valves close when the pressure is relieved or the temperature is reduced. Fusible plug valves require replacement of the plug. See also valve, safety relief and valve, regulating. Temperature.

spring disk loading method, 4.0 gallons per minute valve discharge flow rate, 225.0 fahrenheit single response maximum operating temp, right-hand all ends thread direction, poppet 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.

Thread Direction: right-hand all ends
Flow Control Device: poppet
Disk Loading Method: spring
Valve Discharge Flow Rate: 4.0 gallons per minute
Maximum Operating Temp: 225.0 fahrenheit single response
Connection Style: plain,optional end(pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded internal pipe all ends
Maximum Operating Pressure: 3600.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches all ends
Opening Pressure Setting: 750.0 pounds per square inch
Material: plastic polytetrafluoroethylene seat
Material: steel comp 303 flow control device
Material: steel corrosion resisting body
Media For Which Designed: air 1st response
Media For Which Designed: hydraulic fluid, petroleum base 2nd response
Style Designator: straight thru note: to be used for valve bodies of separable sections.
Thread Series Designator: npt all 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
S665-7-1/4	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-125-3582?

The FSCG of the NSN 4820-01-125-3582 is 4820

Does the NSN 4820-01-125-3582 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-125-3582 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 4820-01-125-3582 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-125-3582 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 4820-01-125-3582 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Tue, Jan 26, 1982