4820-01-220-1960

Find complete technical information, availability, and procurement data for: 4820-01-220-1960
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-220-1960

Item Name Code

05488

Assigment Date

11/09/1985 (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.

14.3 gallons per minute valve discharge flow rate, flange all ends connection type, automatic valve operation method, +18.0 to 32.0 pounds per square inch adjustable pressure range, disk 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.

Flow Control Device: disk
Valve Discharge Flow Rate: 14.3 gallons per minute
Valve Operation Method: automatic
Connection Type: flange all ends
Adjustable Pressure Range: +18.0 to 32.0 pounds per square inch
Material: steel overall
Media For Which Designed: fuel/oil, hydrocarbon 1st response
Media For Which Designed: steam 2nd response

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-595-1540	No Name Available	03/01/1989

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
L3110B .75IPS 18T32PSI	Safety Relief Valve
LL-2120C,3/8INCH,311-375PSI	Safety Relief Valve
NMP8030PTA18T32P	Safety Relief Valve
NMP8030PTA18T32PSI	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-220-1960?

The FSCG of the NSN 4820-01-220-1960 is 4820

Does the NSN 4820-01-220-1960 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-220-1960 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 4820-01-220-1960 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-220-1960 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 4820-01-220-1960 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Sat, Nov 9, 1985