NSN 4820-01-501-7806
Velocity Fuse
About this product
Seal material is buna-n syn rubber.
Manufacturer part number D559T-8D-55 for national stock number 4820015017806.
Datasheet
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Product description
Safety Relief Valve NSN 4820-01-501-7806.
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MPN or Model
D559T-8D-55
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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
2a all ends -
Thread Direction
Right-hand all ends -
Flow Control Device
Poppet -
Disk Loading Method
Spring -
Renewable Seat Ring Type
Pressed-in -
Maximum Operating Temp
250.0 degrees fahrenheit single response -
Minimum Operating Temp
-40.0 degrees fahrenheit -
Connection Style
G50 external seat for gasket seal (boss) all ends -
Valve Operation Method
Automatic -
Connection Type
Threaded external boss all ends -
Thread Size
0.750 inches all ends -
Opening Pressure Setting
55.0 pounds per square inch -
Material
Stainless steel -
Media For Which Designed
Steam single response -
Style Designator
Err-090 -
Thread Series Designator
Unf all ends
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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 4820-01-501-7806 safety relief valveManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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D559T-8D-55 | Circor Aerospace, Inc. |
3240789 | Naval Sea Systems Command |
Stock Check
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