TA294-20-20-R

View detailed technical data, stock status, and sourcing information for: TA294-20-20-R
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-308-4322

Item Name Code

10958

Assigment Date

09/28/1989 (36 years ago)

A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. Thermostatically operated valves close when the pressure is relieved or the temperature is reduced. Fusible plug valves require replacement of the plug. See also valve, safety relief and valve, regulating. Temperature.

threaded external tube first end connection type, air media for which designed, plain first end style designator, 0.500 inches nominal first end outside diameter tube accommodated, single connection, straight flow body style

Product Characteristics

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

Body Style: single connection, straight flow
Media For Which Designed: air
First End Connection Type: threaded external tube
First End Style Designator: plain
First End Outside Diameter Tube Accommodated: 0.500 inches nominal
First End Thread Class: 2a
First End Thread Direction: right-hand
First End Seat Angle In Deg: 37.0
Flow Control Device: disk, flat
End Connection Quantity: 1
Disk Loading Method: weight
Opening Pressure Setting: 3.5 pounds per square inch
Valve Venting Design Type: atmospheric
Valve Relief Design Type: pressure and vacuum
End Item Identification: 5820-01-256-1634
First End Thread Series Designator: unf
First End Nominal Thread Size: 0.750 inches
Material: aluminum alloy body
Material: aluminum alloy flow control device

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
019328	Gaseou Pressure Equalizing Valve
019328-001	Gaseou Pressure Equalizing Valve
TA294-1462	Gaseou Pressure Equalizing Valve
TA294-20-20-R	Gaseou Pressure Equalizing Valve

FAQs

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

What is the FSCG of the NSN 4820-01-308-4322?

The FSCG of the NSN 4820-01-308-4322 is 4820

Does the NSN 4820-01-308-4322 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809050

Does NSN 4820-01-308-4322 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 4820-01-308-4322 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-308-4322 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 4820-01-308-4322 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Thu, Sep 28, 1989