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NSN 4820-01-026-2931

Fuel Manifold Check Valve

About this product

Inlet flow from boss end.

Manufacturer part number P51-389 for national stock number 4820010262931.

Datasheet

  • Product description

    Check Valve NSN 4820-01-026-2931.

  • MPN or Model

    P51-389

  • Schedule B
    8481.30.9000 (Check valves of materials other than copper, iron or steel)
  • NMF (National Motor Freight)
    051080 - Faucets, Bibcocks, Gates Valves
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3b 2nd end
  • Thread Direction
    Right-hand all ends
  • Flow Control Device
    Poppet
  • Disk Loading Method
    Spring
  • Maximum Operating Temp
    300.0 degrees fahrenheit single response
  • Connection Style
    Gasket seal (boss) 2nd end
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded internal boss 2nd end
  • Mounting Position
    Horizontal or vertical
  • Thready Qty Per Inch (tpi)
    18 1st end
  • Maximum Operating Pressure
    60.0 pounds per square inch single response
  • Thread Size
    0.562 inches all ends
  • Seat Angle
    37.0 degrees 1st end
  • Material
    Aluminum alloy 2024 body
  • Material Specification
    Qq-a-225/6 federal specification single material response body
  • Media For Which Designed
    Fuel/oil, hydrocarbon single response
  • Surface Treatment
    Anodize
  • Surface Treatment Specification
    Mil-a-8625 military specification single treatment response
  • 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 4820010262931

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
P51-389 Circor Aerospace, Inc.
3R1682 Crissair, Inc.
ST7M396-1 Boeing Company, The
ST7M396 Boeing Company, The
Stock Check
Availability for this item was last checked on 04/24/23. The quantities and conditions available at the time were:
  • NE: 1
  • NS: 1