4820-01-431-7399

Find complete technical information, availability, and procurement data for: 4820-01-431-7399
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-431-7399

Item Name Code

10958

Assigment Date

05/17/1996 (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.

0.500 inches first end nominal pipe size accommodated, threaded internal pipe first end connection type, air media for which designed, plain first end style designator, right-hand first 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.

Media For Which Designed: air
First End Connection Type: threaded internal pipe
First End Style Designator: plain
First End Nominal Pipe Size Accommodated: 0.500 inches
First End Thread Direction: right-hand
Second End Relationship With First End: identical
Third End Relationship With Preceding Ends: not identical with first or second end
Third End Connection Type: threaded internal pipe
Third End Style Designator: plain
Third End Nominal Pipe Size Accommodated: 0.375 inches
Third End Thread Direction: right-hand
Flow Control Device: disk, circular
End Connection Quantity: 3
End Item Identification: 4310-01-365-9013
First End Thread Series Designator: npt
First End Nominal Thread Size: 0.500 inches
Third End Nominal Thread Size: 0.375 inches
Third End Thread Series Designator: npt
Material: copper alloy body

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
LGM-20F	Gaseou Pressure Equalizing Valve
LGM20AM-F	Gaseou Pressure Equalizing Valve

FAQs

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

What is the FSCG of the NSN 4820-01-431-7399?

The FSCG of the NSN 4820-01-431-7399 is 4820

Does the NSN 4820-01-431-7399 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809050

Does NSN 4820-01-431-7399 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 4820-01-431-7399 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-431-7399 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 4820-01-431-7399 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Fri, May 17, 1996