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NSN 4820-01-448-5581

Fuel Manifold Check Valve

About this product

Poppet flow control device, spring disk loading method, flared (tube) all ends connection style, valve operation method: automatic.

Manufacturer part number 56-7800-1 for national stock number 4820014485581.

Datasheet

  • Product description

    Check Valve NSN 4820-01-448-5581.

  • MPN or Model

    56-7800-1

  • Schedule B
    8481.30.2010 (Check valves of iron)
  • Unit Weight (Est.)
    1 lb
  • Thread Class
    3a all ends
  • Thread Direction
    Right-hand all ends
  • Flow Control Device
    Poppet
  • Disk Loading Method
    Spring
  • Maximum Operating Temp
    1100.0 degrees fahrenheit single response
  • End Application
    Aircraft, b-2 bomber
  • Connection Style
    Flared (tube) all ends
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded external tube all ends
  • Mounting Position
    Horizontal or vertical
  • Maximum Operating Pressure
    110.0 pounds per square inch single response
  • Thread Size
    0.750 inches all ends
  • Seat Angle
    37.0 degrees all ends
  • Material
    Steel comp 321 flow control device
  • Material Specification
    Qq-s-763 cond a federal specification single material response flow control device
  • Style Designator
    Straight thru
  • Thread Series Designator
    Unjf all ends
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Check Valve

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

Mechanic Bill explains Fuel Manifold Check Valve

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NSN 4820014485581

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
56-7800-1 Sweeney Engineering Corp
DAA3285P004-101 Northrop Grumman Systems Corporation
DAA3285P004 Northrop Grumman Systems Corporation
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