4820-01-398-4552

Find complete technical information, availability, and procurement data for: 4820-01-398-4552
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-398-4552

Item Name Code

05488

Assigment Date

11/03/1994 (31 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.

right-hand all ends thread direction, poppet flow control device, plain (pipe) all ends connection style, 250.0 fahrenheit single response maximum operating temp, ahu-24/e disabled aircraft wheel dolly, ground support equipment for the f/a-18 hornet aircraft 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: poppet
Maximum Operating Temp: 250.0 fahrenheit single response
End Item Identification: ahu-24/e disabled aircraft wheel dolly, ground support equipment for the f/a-18 hornet aircraft
Connection Style: plain (pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded external pipe all ends
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches all ends
Opening Pressure Setting: 600.0 pounds per square inch
Special Features: adjustable 350-600 psi range set to 600 psi before use
Material: copper alloy seat
Material: rubber synthetic packing
Material: steel comp 316 body
Material: steel comp 316 flow control device
Media For Which Designed: oil, hydraulic single response
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
2022AS300	Safety Relief Valve
2022AS300-1	Safety Relief Valve
S-4CPA2-350	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-398-4552?

The FSCG of the NSN 4820-01-398-4552 is 4820

Does the NSN 4820-01-398-4552 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-398-4552 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 4820-01-398-4552 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-398-4552 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 4820-01-398-4552 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Thu, Nov 3, 1994