Pump, Water 8940


Availability: In Stock

  • Manufacturer: Micropump
  • Manufacturer Part Number: 8940
  • OEM Aircraft Part Number: 668-28
  • National Stock Number: 4320-01-339-8556
  • End Item: Alternate Micropump Reference: Model No. 668-28
  • Aircraft Model: DeHavilland UV-18, DHC-6 Twin Otter, Falcon


Micropump Pump assembly 8940 can be found on various turboprop and light jet aircraft within the commercial and military sectors. The Model 668-28 (also referred to as 668-28-8940) Pressurematic Water System is a complete electrically powered, constant displacement pump unit. It is used to supply a steady water pressure of approximately 20 psig (1.38 bar) and a maximum flow rate of 1.5 gpm (5.6 l/m) for the water outlets in aircraft equipped with gravity tanks. In aircraft with pressurized water tanks, the Model 668-28 provides boost pressure to approximately 20 psig (1.38 bar) above cabin pressure.

Additional information

Weight 5 lbs
Dimensions 10 × 10 × 10 in

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