4820-00-146-2973

Find complete technical information, availability, and procurement data for: 4820-00-146-2973
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-146-2973

Item Name Code

27565

Assigment Date

09/22/1971 (54 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.

plain first end style designator, air and water, fresh media for which designed, straight thru body style, threaded internal pipe first end connection type, unable to decode first end thread size and series/type designator

Product Characteristics

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

Body Style: straight thru
Media For Which Designed: air and water, fresh
First End Connection Type: threaded internal pipe
First End Style Designator: plain
First End Thread Size And Series/Type Designator: unable to decode
First End Thread Direction: right-hand
Second End Relationship With First End: identical
Flow Control Device: diaphragm
End Connection Quantity: 2
Renewable Seat Ring Type: threaded
Outlet Pressure Range: +5.0 to 40.0 pounds per square inch
Regulation Type: automatic single stage
Valve Loading Method: spring
Maximum Inlet Pressure Rating: 250.0 pounds per square inch
Outlet Pressure Setting: 40.0 pounds per square inch
Filter: included
Temp Rating: 200.0 fahrenheit nominal
Material: unable to decode

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
E93 3-4 15-40PSI	Fluid Pressure Regulating Valve
E93-3-4W5-40PSI	Fluid Pressure Regulating Valve

FAQs

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

What is the FSCG of the NSN 4820-00-146-2973?

The FSCG of the NSN 4820-00-146-2973 is 4820

Does the NSN 4820-00-146-2973 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809015

Does NSN 4820-00-146-2973 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 4820-00-146-2973 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-146-2973 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 4820-00-146-2973 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Wed, Sep 22, 1971