4820-00-059-4933

Find complete technical information, availability, and procurement data for: 4820-00-059-4933
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-059-4933

Item Name Code

05488

Assigment Date

06/15/1967 (59 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.

spring disk loading method, 2b all ends thread class, poppet flow control device, right-hand all ends thread direction, 400.0 fahrenheit single response maximum operating temp

Product Characteristics

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

Thread Class: 2b all ends
Thread Direction: right-hand all ends
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: 400.0 fahrenheit single response
Connection Style: gasket seal(boss) all ends
Valve Operation Method: manual
Connection Type: threaded internal boss all ends
Features Provided: pressure tight outlet side
Adjustable Pressure Range: +235.0 to 450.0 pounds per square inch
Maximum Operating Pressure: 2200.0 pounds per square inch single response
Nominal Thread Size: 0.562 inches all ends
Opening Pressure Setting: 360.0 pounds per square inch
Nominal Outside Diameter Tube Accommodated: 0.375 inches all ends
Material: plastic polytetrafluoroethylene flow control device
Material: steel corrosion resisting body
Material: steel corrosion resisting seat
Media For Which Designed: water-oil-gas single response
Surface Treatment: passivate
Style Designator: angle
Thread Series Designator: unjf 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
645B-5-6-T	Safety Relief Valve
645B5-6T	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-059-4933?

The FSCG of the NSN 4820-00-059-4933 is 4820

Does the NSN 4820-00-059-4933 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-059-4933 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 4820-00-059-4933 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-059-4933 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 4820-00-059-4933 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Thu, Jun 15, 1967