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NSN 4820-01-345-1868

Fuel Manifold Check Valve

About this product

Disk flow control device, external seat for gasket seal (boss) all ends connection style, automatic valve operation method, connection type: threaded external boss all ends.

Manufacturer part number 259A-12TT-.5 for national stock number 4820013451868.

Datasheet

  • Product description

    Check Valve NSN 4820-01-345-1868.

  • MPN or Model

    259A-12TT-.5

  • Schedule B
    8481.30.9000 (Check valves of materials other than copper, iron or steel)
  • NMF (National Motor Freight)
    051080 - Faucets, Bibcocks, Gates Valves
  • Thread Class
    3a all ends
  • Thread Direction
    Right-hand all ends
  • Flow Control Device
    Disk
  • Maximum Operating Temp
    275.0 degrees fahrenheit single response
  • Connection Style
    External seat for gasket seal (boss) all ends
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded external boss all ends
  • Mounting Position
    Horizontal
  • Thready Qty Per Inch (tpi)
    12 all ends
  • Maximum Operating Pressure
    3000.0 pounds per square inch single response
  • Thread Size
    1.062 inches all ends
  • Seat Angle
    37.0 degrees all ends
  • Opening Pressure Setting
    0.5 pounds per square inch
  • Material
    Rubber butadiene-acrylonitrile class nbr packing
  • Media For Which Designed
    Air single response
  • Style Designator
    Straight thru
  • Thread Series Designator
    Unj all ends
More from these suppliers
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 4820013451868

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
259A-12TT-.5 Circor Aerospace, Inc.
5122709-033-107 Lockheed Martin Corporation
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