4820-00-446-3237

Find complete technical information, availability, and procurement data for: 4820-00-446-3237
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-446-3237

Item Name Code

05483

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 bonnet attachment method, 2a all ends thread class, inside screw bonnet type, disk flow control device, right-hand 2nd end thread direction

Product Characteristics

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

Thread Class: 2a all ends
Thread Direction: right-hand 2nd end
Flow Control Device: disk
Bonnet Type: inside screw
Bonnet Attachment Method: threaded
Connection Style: socket (tube) 1st end
Connection Style: flared (tube) 2nd end
Valve Operation Method: manual
Connection Type: threaded external tube 2nd end
Connection Type: unthreaded internal tube 1st end
Maximum Operating Pressure: 150.0 pounds per square inch single response
Nominal Thread Size: 0.438 inches 2nd end
Seat Angle: 45.0 degrees 2nd end
Nominal Outside Diameter Tube Accommodated: 0.250 inches 2nd end
Nominal Outside Diameter Tube Accommodated: 0.250 inches 1st end
Material: copper alloy overall
Media For Which Designed: refrigerant 12 1st response
Media For Which Designed: refrigerant 22 2nd response
Style Designator: angle
Thread Series Designator: unf 2nd end
Furnished Items And Quantity: 1 cap and 1 chain

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
401341ITEM89	Angle Valve
6431N	Angle Valve
AM57S59-120ALT1PC74	Angle Valve
BA6431	Angle Valve
BB55S59-0241ITEM49	Angle Valve
P215E	Angle Valve
R33402ITEM49	Angle Valve

FAQs

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

What is the FSCG of the NSN 4820-00-446-3237?

The FSCG of the NSN 4820-00-446-3237 is 4820

Does the NSN 4820-00-446-3237 have a Schedule B code assigned?

Yes, the Schedule B code is 8481801095

Does NSN 4820-00-446-3237 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 4820-00-446-3237 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-446-3237 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 4820-00-446-3237 was assigned to the Federal Catalog?

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