2349A-2MM-12

View detailed technical data, stock status, and sourcing information for: 2349A-2MM-12
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-222-7809

Item Name Code

05487

Assigment Date

12/17/1985 (40 years ago)

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes:valve (1), relief, pressure and temperature.

spring disk loading method, plain (pipe) all ends connection style, 250.0 fahrenheit single response maximum operating temp, disk flow control device, right-hand all ends thread direction

Product Characteristics

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

Thread Direction: right-hand all ends
Flow Control Device: disk
Disk Loading Method: spring
Maximum Operating Temp: 250.0 fahrenheit single response
Connection Style: plain (pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded external pipe all ends
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 5000.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches all ends
Special Features: nominal cracking pressure 2 - 4 psi
Material: aluminum alloy 2024 body
Material Document And Classification: qq-a-225/6 fed spec single material response body
Media For Which Designed: acetylene 2nd response
Media For Which Designed: air 1st response
Media For Which Designed: ammonia, liquid 4th response
Media For Which Designed: ammonia, gaseous 3rd response
Media For Which Designed: carbon dioxide 5th response
Style Designator: straight thru
Thread Series Designator: npt all ends

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
2349A-2MM-12	Check Valve
6C241	Check Valve
804592	Check Valve
804592-1	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-222-7809?

The FSCG of the NSN 4820-01-222-7809 is 4820

Does the NSN 4820-01-222-7809 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-01-222-7809 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 4820-01-222-7809 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-222-7809 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 4820-01-222-7809 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Tue, Dec 17, 1985