4820-01-259-2274

Find complete technical information, availability, and procurement data for: 4820-01-259-2274
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-259-2274

Item Name Code

05488

Assigment Date

07/14/1987 (39 years ago)

A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes:regulator, pressure, medical gas administration apparatus; regulator, oxygen, barometric continuous flow; regulator, oxygen demand; regulator, oxygen diluter demand; and valve(1), fluid pressure regulating, aircraft.

165.0 fahrenheit single response maximum operating temp, disk flow control device, automatic valve operation method, socket with brazing ring all ends connection style, 0.250 inches all ends nominal pipe size accommodated

Product Characteristics

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

Nominal Pipe Size Accommodated: 0.250 inches all ends
Flow Control Device: disk
Maximum Operating Temp: 165.0 fahrenheit single response
Connection Style: socket with brazing ring all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal pipe all ends
Adjustable Pressure Range: +76.0 to 90.0 pounds per square inch
Maximum Operating Pressure: 150.0 pounds per square inch 2nd response
Maximum Operating Pressure: 460.0 pounds per square inch 1st response
Special Features: spring number: 75l
Material: copper alloy 922 body
Material: nickel alloy flow control device
Material: nickel alloy seat
Material: nickel alloy stem
Material Document And Classification: astm b-61 assn std single material response body
Material Document And Classification: qq-n-281 fed spec single material response flow control device
Material Document And Classification: qq-n-281 fed spec single material response seat
Material Document And Classification: qq-n-281 fed spec single material response stem
Style Designator: angle

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
20235L51, CD SHT 16282	Safety Relief Valve
20235L51M CD SHT 16282	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-259-2274?

The FSCG of the NSN 4820-01-259-2274 is 4820

Does the NSN 4820-01-259-2274 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-259-2274 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 4820-01-259-2274 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-259-2274 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 4820-01-259-2274 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Tue, Jul 14, 1987