4820-00-073-3480

Find complete technical information, availability, and procurement data for: 4820-00-073-3480
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-073-3480

Item Name Code

05488

Assigment Date

01/01/1963 (63 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.

threaded internal pipe 2nd end connection type, 0.375 inches 2nd end nominal thread size, threaded internal pipe 1st end connection type, threaded internal pipe 3rd end connection type, 0.250 inches 3rd end nominal thread size

Product Characteristics

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

Connection Type: threaded internal pipe 1st end
Connection Type: threaded internal pipe 2nd end
Connection Type: threaded internal pipe 3rd end
Nominal Thread Size: 0.250 inches 3rd end
Nominal Thread Size: 0.375 inches 2nd end
Nominal Thread Size: 0.500 inches 1st end
Special Features: w/2 additional ports,1/4-18 npt
Material: zinc alloy body
Thread Series Designator: npt 2nd end
Thread Series Designator: npt 3rd end
Thread Series Designator: npt 1st end

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
865756R91	Safety Relief Valve
997074R91	Safety Relief Valve
NA20669A	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-073-3480?

The FSCG of the NSN 4820-00-073-3480 is 4820

Does the NSN 4820-00-073-3480 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-073-3480 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 4820-00-073-3480 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-073-3480 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 4820-00-073-3480 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963