NSN 4820-00-756-7889
Velocity Fuse
About this product
Piston flow control device, spring disk loading method, 2.5 gallons per minute valve discharge flow rate, connection style: gasket sea (boss) 2nd end.
Manufacturer part number 9978869 for national stock number 4820007567889.
Datasheet
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Product description
Safety Relief Valve NSN 4820-00-756-7889.
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MPN or Model
9978869
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Schedule B
8481.40.0000 (Safety or relief valves) -
NMF (National Motor Freight)
127220 - Pressure Reg/red/relief Valves NOI -
Thread Class
2b 2nd end -
Thread Direction
Right-hand 1st end -
Flow Control Device
Piston -
Disk Loading Method
Spring -
Valve Discharge Flow Rate
2.5 gallons per minute -
Connection Style
Gasket sea (boss) 2nd end -
Valve Operation Method
Automatic -
Connection Type
Threaded internal boss 2nd end -
Thread Size
0.625 inches 2nd end -
Seat Angle
37.0 degrees 1st end -
Opening Pressure Setting
50.0 pounds per square inch -
Material
Aluminum alloy -
Style Designator
Angle -
Thread Series Designator
Unf 2nd 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 4820-00-756-7889 safety relief valveManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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9978869 | U S Army Aviation And Missile |
Stock Check
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