NSN 4820-01-120-1053
Velocity Fuse
About this product
Poppet flow control device, spring disk loading method, g46b plain (pipe) 1st end connection style, valve operation method: automatic.
Manufacturer part number D559B-1M-20 for national stock number 4820011201053.
Datasheet
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Product description
Safety Relief Valve NSN 4820-01-120-1053.
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MPN or Model
D559B-1M-20
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Schedule B
8481.40.0000 (Safety or relief valves) -
NMF (National Motor Freight)
050855 - Cocks R Valves Etc Bbc Sub1 -
Unit Weight (Est.)
0.1 lb -
Thread Direction
Right-hand 1st end -
Flow Control Device
Poppet -
Disk Loading Method
Spring -
Maximum Operating Temp
275.0 degrees fahrenheit single response -
Connection Style
G46b plain (pipe) 1st end -
Valve Operation Method
Automatic -
Connection Type
Threaded external pipe 1st end -
Maximum Operating Pressure
200.0 pounds per square inch single response -
Thread Size
0.125 inches 1st end -
Opening Pressure Setting
20.0 pounds per square inch -
Material
Copper alloy body -
Media For Which Designed
Nitrogen, gaseous 5th response -
Style Designator
Err-090 -
Thread Series Designator
Npt 1st end
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Safety Relief Valve
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.
![Mechanic Bill explains Velocity Fuse](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 4820-01-120-1053 safety relief valveManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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D559B-1M-20 | Circor Aerospace, Inc. |
Stock Check
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