4820-01-423-2002

Find complete technical information, availability, and procurement data for: 4820-01-423-2002
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-423-2002

Item Name Code

42174

Assigment Date

12/18/1995 (30 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.

threaded bonnet attachment method, disk flow control device, inside screw bonnet type, socket (tube) all ends connection style, navy weapons system code,th,strategic sealift conversion ships class end item identification

Product Characteristics

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

Flow Control Device: disk
Bonnet Type: inside screw
Bonnet Attachment Method: threaded
End Item Identification: navy weapons system code,th,strategic sealift conversion ships class
Connection Style: socket (tube) all ends
Valve Operation Method: manual
Connection Type: butt weld tube all ends
Features Provided: bonnet packing
Nominal Outside Diameter Tube Accommodated: 0.500 inches all ends
Material: graphite packing
Material: steel body
Material: steel corrosion resisting flow control device
Material: steel corrosion resisting stem
Material Document And Classification: astm a105 assn std single material response body
Material Document And Classification: astma743 ca40 assn std single material response flow control device
Material Document And Classification: astma276 410 assn std single material response stem
Style Designator: straight thru

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
28S-FS2 SC .25IN	Globe-Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-423-2002?

The FSCG of the NSN 4820-01-423-2002 is 4820

Does the NSN 4820-01-423-2002 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-01-423-2002 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 4820-01-423-2002 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-423-2002 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 4820-01-423-2002 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Mon, Dec 18, 1995