NSN 4820-00-491-4994
Velocity Fuse
About this product
Poppet flow control device, spring disk loading method, plain (pipe) 1st end connection style, valve operation method: automatic.
Manufacturer part number 520T-2M-20 for national stock number 4820004914994.
Datasheet
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Product description
Safety Relief Valve NSN 4820-00-491-4994.
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MPN or Model
520T-2M-20
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Schedule B
8481.40.0000 (Safety or relief valves) -
NMF (National Motor Freight)
127220 - Pressure Reg/red/relief Valves NOI -
Unit Weight (Est.)
0.4 lb -
Thread Direction
Right-hand 1st end -
Flow Control Device
Poppet -
Disk Loading Method
Spring -
Maximum Operating Temp
450.0 degrees fahrenheit 2nd response -
Connection Style
Plain (pipe) 1st end -
Valve Operation Method
Automatic -
Connection Type
Threaded external pipe 1st end -
Thready Qty Per Inch (tpi)
27 1st end -
Adjustable Pressure Range
+0.0/+200.0 pounds per square inch -
Maximum Operating Pressure
200.0 pounds per square inch single response -
Thread Size
0.250 inches 1st end -
Opening Pressure Setting
20.0 pounds per square inch -
Material
Steel comp 303 -
Material Specification
66 federal standard single material response -
Media For Which Designed
Water-oil-gas single response -
Style Designator
Straight thru -
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.
Pricing and Availability
Get a quote for 4820-00-491-4994 safety relief valveManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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520T-2M-20 | Circor Aerospace, Inc. |
532066-2 | Raytheon Company |
Stock Check
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