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NSN 4820-01-505-8743

Velocity Fuse

About this product

1.200 in. Overall length; 0.625 in. Hex..

Manufacturer part number 559T-2M-12 for national stock number 4820015058743.

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-01-505-8743.

  • MPN or Model

    559T-2M-12

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Unit Weight (Est.)
    0.1 lb
  • Thread Direction
    Right-hand 1st end
  • Flow Control Device
    Poppet
  • Maximum Operating Temp
    250.0 degrees fahrenheit single response
  • Connection Style
    G46b plain (pipe) 1st end
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded external pipe 1st end
  • Adjustable Pressure Range
    +0.5/+150.0 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
    12.0 pounds per square inch
  • Part Name Assigned By Controlling Agency
    Popoff valve
  • Material
    Steel comp 303 body
  • Media For Which Designed
    Hydrogen 5th response
  • Style Designator
    Err-090
  • Thread Series Designator
    Npt 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

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NSN 4820015058743

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
559T-2M-12 Circor Aerospace, Inc.
7326559 FIND 20 Naval Sea Systems Command
7326559 Naval Sea Systems Command
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