4820-01-220-5574

Find complete technical information, availability, and procurement data for: 4820-01-220-5574
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-220-5574

Item Name Code

10958

Assigment Date

11/16/1985 (40 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.

gasket and nut furnished items, disk, flat flow control device, 1 end connection quantity, -80.0 fahrenheit and 160.0 fahrenheit temp rating, single connection, straight flow body style

Product Characteristics

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

Body Style: single connection, straight flow
Furnished Items: gasket and nut
Temp Rating: -80.0 fahrenheit and 160.0 fahrenheit
Flow Control Device: disk, flat
End Connection Quantity: 1
Opening Pressure Setting: 3.5 pounds per square inch
Material: aluminum alloy body
Surface Treatment: chromate outside
Surface Treatment Document And Classification: tt-p-636 fed spec single treatment response outside

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
70979-001	Gaseou Pressure Equalizing Valve
TA500-VR-20	Gaseou Pressure Equalizing Valve

FAQs

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

What is the FSCG of the NSN 4820-01-220-5574?

The FSCG of the NSN 4820-01-220-5574 is 4820

Does the NSN 4820-01-220-5574 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809050

Does NSN 4820-01-220-5574 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 4820-01-220-5574 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-220-5574 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 4820-01-220-5574 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Sat, Nov 16, 1985