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NSN 4820-01-088-2874

Velocity Fuse

About this product

Poppet flow control device, spring disk loading method, 40.0 cubic feet per minute valve discharge flow rate, connection style: g46a plain (tube) 1st end.

Manufacturer part number D559A-8D-45 for national stock number 4820010882874.

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-01-088-2874.

  • MPN or Model

    D559A-8D-45

  • 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 Class
    3a 1st end
  • Thread Direction
    Right-hand 1st end
  • Flow Control Device
    Poppet
  • Disk Loading Method
    Spring
  • Valve Discharge Flow Rate
    40.0 cubic feet per minute
  • Maximum Operating Temp
    -40.0 degrees fahrenheit 1st response280.0 degrees fahrenheit 2nd response
  • Connection Style
    G46a plain (tube) 1st end
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded external tube 1st end
  • Thready Qty Per Inch (tpi)
    16 1st end
  • Maximum Operating Pressure
    200.0 pounds per square inch single response
  • Thread Size
    0.750 inches 1st end
  • Opening Pressure Setting
    45.0 pounds per square inch
  • Material
    Steel comp 303 flow control device
  • Material Specification
    Qq-s-764, type 303-canceled federal specification single material response flow control device
  • Media For Which Designed
    Helium 5th response
  • Surface Treatment
    Anodize
  • Surface Treatment Specification
    Mil-a-8625, type 1, class 1 military specification single treatment response
  • Style Designator
    Err-090
  • Thread Series Designator
    Unjf 1st end
  • Furnished Items And Quantity
    1 deflector cap
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 4820010882874

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
D559A-8D-45 Circor Aerospace, Inc.
581R855H01 Northrop Grumman Systems Corporation
581R855 Northrop Grumman Systems Corporation
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