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.
How many distinct aircraft programmes each supplier in this area is linked to in our database — a proxy for how widely established a company is across the industry. Bars are relative to the top-ranked supplier.
Whether supply here is concentrated in a few big players or spread across many. Top-5 share is the portion of all programme links held by the five largest suppliers. HHI (Herfindahl–Hirschman Index) runs 0–10,000: under ~1,500 is competitive, over ~2,500 is concentrated.
Where the listed suppliers in this area are based, by country of head office. Useful for sourcing, near-shoring and understanding regional strengths.