NSN 4820-00-155-7681
Velocity Fuse
About this product
Poppet flow control device, inside screw bonnet type, integral bonnet attachment method, disk loading method: spring.
Manufacturer part number 5120T12TB30 for national stock number 4820001557681.
Datasheet
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Product description
Safety Relief Valve NSN 4820-00-155-7681.
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MPN or Model
5120T12TB30
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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
3b 2nd end -
Thread Direction
Right-hand 1st end -
Flow Control Device
Poppet -
Bonnet Type
Inside screw -
Bonnet Attachment Method
Integral -
Disk Loading Method
Spring -
Maximum Operating Temp
450.0 degrees fahrenheit single response -
Connection Style
Gasket sea (boss) 2nd end -
Valve Operation Method
Automatic -
Connection Type
Threaded internal boss 2nd end -
Features Provided
Pressure tight outlet side -
Thready Qty Per Inch (tpi)
12 2nd end -
Thread Size
1.062 inches 2nd end -
Seat Angle
37.0 degrees 1st end -
Opening Pressure Setting
30.0 pounds per square inch -
Outside Diameter Tube Accommodated
0.750 inches 2nd end -
Material
Steel comp 303 -
Material Specification
Fedstd66, aisi303/sae30303 federal standard all material responses -
Media For Which Designed
Water-oil-gas single response -
Style Designator
Err-090 -
Thread Series Designator
Unj 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.
Pricing and Availability
Get a quote for 4820-00-155-7681 safety relief valveManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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5120T12TB30 | Circor Aerospace, Inc. |
Stock Check
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