4820-01-189-8522

Find complete technical information, availability, and procurement data for: 4820-01-189-8522
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-189-8522

Item Name Code

05487

Assigment Date

09/20/1984 (41 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.

300.0 fahrenheit single response maximum operating temp, poppet flow control device, right-hand all ends thread direction, spring disk loading method, plain (pipe) all ends connection style

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
Maximum Operating Temp: 300.0 fahrenheit single response
Connection Style: plain (pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded external pipe all ends
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches all ends
Material: aluminum alloy and rubber seat
Material: aluminum alloy body
Material: aluminum alloy flow control device
Style Designator: straight thru
Thread Series Designator: npt all ends

FAQs

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

What is the FSCG of the NSN 4820-01-189-8522?

The FSCG of the NSN 4820-01-189-8522 is 4820

Does the NSN 4820-01-189-8522 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-01-189-8522 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 4820-01-189-8522 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-189-8522 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 4820-01-189-8522 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Thu, Sep 20, 1984