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NSN 4820-00-006-4010

Velocity Fuse

About this product

Pop-off type.

Manufacturer part number 559A-1M-90 for national stock number 4820000064010.

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-00-006-4010.

  • MPN or Model

    559A-1M-90

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Unit Weight (Est.)
    0.2 lb
  • Thread Direction
    Right-hand 1st end
  • Flow Control Device
    Poppet
  • Disk Loading Method
    Spring
  • Maximum Operating Temp
    250.0 degrees fahrenheit single response
  • Connection Style
    Plain (pipe) 1st end
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded external pipe 1st end
  • Maximum Operating Pressure
    200.0 pounds per square inch single response
  • Thread Size
    0.125 inches 1st end
  • Opening Pressure Setting
    90.0 pounds per square inch
  • Material
    Aluminum alloy body lining
  • Material Specification
    Qq-a-628, alloy2024 federal specification single material response body lining
  • Media For Which Designed
    Hydrogen 5th response
  • Style Designator
    Straight through note: to be used for valve bodies of one section only.
  • 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.

Mechanic Bill explains Velocity Fuse

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NSN 4820000064010

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
559A-1M-90 Transdigm, Inc.
7LV221-90 Saf Industries Llc
632869-10 Lockheed Martin Corporation
559A-1M-90 Circor Aerospace, Inc.
632869 Lockheed Martin Corporation
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