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NSN 4820-00-618-4989

Velocity Fuse

About this product

Pop-off type.

Manufacturer part number 559B-2M-20 for national stock number 4820006184989.

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-00-618-4989.

  • MPN or Model

    559B-2M-20

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Pipe Size Accommodated
    0.250 inches 1st end
  • Thread Direction
    Right-hand 1st end
  • Flow Control Device
    Poppet
  • Disk Loading Method
    Spring
  • Connection Style
    Plain (pipe) 1st end
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded external pipe 1st end
  • Features Provided
    Pressure tight outlet side
  • Thready Qty Per Inch (tpi)
    18 1st end
  • Adjustable Pressure Range
    +10.0/+30.0 pounds per square inch
  • Thread Size
    0.250 inches 1st end
  • Opening Pressure Setting
    20.0 pounds per square inch
  • Material
    Copper alloy
  • 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
More from these suppliers
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 4820006184989

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
559B-2M-20 Circor Aerospace, Inc.
11241398-1 Ballistic Missile Defense Systems
1390883 Navair And Navsea Managed
Stock Check
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