002594420/127

View detailed technical data, stock status, and sourcing information for: 002594420/127
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-289-4383

Item Name Code

05483

Assigment Date

01/01/1961 (65 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.

3a 2nd end thread class, inside screw bonnet type, stem flow control device, right-hand all ends thread direction, integral bonnet attachment method

Product Characteristics

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

Thread Class: 3a 2nd end
Thread Direction: right-hand all ends
Flow Control Device: stem
Bonnet Type: inside screw
Bonnet Attachment Method: integral
Maximum Operating Temp: 300.0 fahrenheit single response
Connection Style: flared (tube) 2nd end
Connection Style: plain (pipe) 1st end
Valve Operation Method: manual
Connection Type: threaded external pipe 1st end
Connection Type: threaded external tube 2nd end
Features Provided: valve stem lock shield and bonnet packing
Maximum Operating Pressure: 500.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches 1st end
Nominal Thread Size: 0.437 inches 2nd end
Seat Angle: 45.0 degrees 2nd end
Special Features: w/thd seal cap on body top
Material: copper alloy body
Material: copper alloy flow control device
Material: copper alloy seat
Material: steel stem
Media For Which Designed: refrigerant 12 1st response
Media For Which Designed: refrigerant 22 2nd response
Style Designator: angle
Thread Series Designator: npt 1st end
Thread Series Designator: unf 2nd end

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-058-1686	No Name Available	02/02/1974
4820-00-288-7525	No Name Available	01/01/1960
4820-00-340-2715	No Name Available	12/01/1976
4130-00-392-3146	No Name Available	01/22/1972
4820-00-546-3470	No Name Available	04/01/1991
4130-00-575-5004	No Name Available	01/01/1963
4130-00-895-1800	No Name Available	08/01/1980
4820-00-922-0052	No Name Available	08/01/1983
4820-01-159-2051	No Name Available	03/01/1994

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:

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002594420 ITEM 127	Angle Valve
002594420/127	Angle Valve
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FAQs

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

What is the FSCG of the NSN 4820-00-289-4383?

The FSCG of the NSN 4820-00-289-4383 is 4820

Does the NSN 4820-00-289-4383 have a Schedule B code assigned?

Yes, the Schedule B code is 8481801095

Does NSN 4820-00-289-4383 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 4820-00-289-4383 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-289-4383 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 4820-00-289-4383 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961