Hydraulic actuators convert pressurised hydraulic fluid — typically MIL-PRF-5606, MIL-PRF-83282, or Skydrol-compatible fluid — into mechanical force or motion for flight-control surfaces, landing gear, thrust reversers, and braking systems, encompassing piston and ram cylinder assemblies, hydraulic manifolds, servo valves, seals, and actuator control units (ACUs) operating within standard aerospace hydraulic systems at pressures up to 5,000 psi.
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