M5159B-4M-B

View detailed technical data, stock status, and sourcing information for: M5159B-4M-B
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-415-7321

Item Name Code

05488

Assigment Date

07/05/1995 (31 years ago)

An adapter having machine threads (straight threads other than pipe or hose series) designed to accommodate a tube on one end or an unthreaded end designed to accommodate a tube. The other end has external or internal machine threads (straight threads other than pipe or hose series) and is designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. It is designed to join a tube or tube fitting to a boss or boss fitting in a straight line on items such as tanks, housings, valve fittings, and the like. See also coupling, tube and nipple, tube.

right-hand all ends thread direction, 250.0 fahrenheit single response maximum operating temp, aircraft, eagle f-15 end item identification, spring disk loading method, -40.0 fahrenheit minimum operating temp

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
Disk Loading Method: spring
Maximum Operating Temp: 250.0 fahrenheit single response
Minimum Operating Temp: -40.0 fahrenheit
End Item Identification: aircraft, eagle f-15
Connection Style: plain (pipe) all ends
Valve Operation Method: automatic or manual
Connection Type: threaded external pipe all ends
Maximum Operating Pressure: 2400.0 pounds per square inch single response
Nominal Thread Size: 0.500 inches all ends
Opening Pressure Setting: 20.0 pounds per square inch
Material: copper alloy body
Media For Which Designed: acetylene 2nd response
Media For Which Designed: air 1st response
Media For Which Designed: ammonia, gaseous 3rd response
Media For Which Designed: gas, inert 4th response
Media For Which Designed: refrigerant 12 5th response
Style Designator: angle
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
3307929-3	Safety Relief Valve
M5159B-4M-20	Safety Relief Valve
M5159B-4M-B	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-415-7321?

The FSCG of the NSN 4820-01-415-7321 is 4820

Does the NSN 4820-01-415-7321 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-415-7321 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 4820-01-415-7321 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-415-7321 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 4820-01-415-7321 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Wed, Jul 5, 1995