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NSN 4820-01-147-4951

Velocity Fuse

About this product

Poppet flow control device, spring disk loading method, err-090 1st end connection style, valve operation method: automatic.

Manufacturer part number 577A-4D-12 for national stock number 4820011474951.

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-01-147-4951.

  • MPN or Model

    577A-4D-12

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Thread Class
    3a 1st end
  • 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
    Err-090 1st end
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded external tube 1st end
  • Maximum Operating Pressure
    200.0 pounds per square inch single response
  • Thread Size
    0.438 inches 1st end
  • Opening Pressure Setting
    12.0 pounds per square inch
  • Material
    Aluminum alloy 2024
  • Material Specification
    Qq-a-225/6, t4 federal specification single material response
  • Media For Which Designed
    Hydrogen 4th response
  • Surface Treatment
    Anodize
  • Style Designator
    Err-090
  • Thread Series Designator
    Unf 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 4820011474951

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
577A-4D-12 Circor Aerospace, Inc.
GV500HW4A12-77 Northrop Grumman Systems Corporation
GV500HW4A12-37 Northrop Grumman Systems Corporation
537A-4D-12 Circor Aerospace, Inc.
577A-4D-12 Circor Aerospace, Inc.
GV500HW4A12-77 Northrop Grumman Systems Corporation
537A-4D-12 Circor Aerospace, Inc.
GV500HW4A12-37 Northrop Grumman Systems Corporation
577A-4D-12 Circor Aerospace, Inc.
GV500HW4A12-77 Northrop Grumman Systems Corporation
537A-4D-12 Circor Aerospace, Inc.
GV500HW4A12-37 Northrop Grumman Systems Corporation
577A-4D-12 Circor Aerospace, Inc.
GV500HW4A12-77 Northrop Grumman Systems Corporation
537A-4D-12 Circor Aerospace, Inc.
GV500HW4A12-37 Northrop Grumman Systems Corporation
537A-4D-12 Circor Aerospace, Inc.
GV500HW4A12-37 Northrop Grumman Systems Corporation
GV500HW4A12-77 Northrop Grumman Systems Corporation
577A-4D-12 Circor Aerospace, Inc.
577A-4D-12 Circor Aerospace, Inc.
GV500HW4A12-77 Northrop Grumman Systems Corporation
537A-4D-12 Circor Aerospace, Inc.
GV500HW4A12-37 Northrop Grumman Systems Corporation
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