Parker Hannifin is a company that manufactures and supplies fluid power systems and electromechanical control products. It operates through two segments: Diversified Industrial and Aerospace Systems. The Diversified Industrial segment offers a range of products such as coatings, fittings, motors, controllers, valves, etc. The Aerospace Systems segment supplies airframe and engine components and systems, including avionics, pneumatics, sensors, engine exhaust systems, and other products. Its services include thermal management, fluid condition monitoring, engine filtration, etc. The company caters to aerospace, defense, transportation, energy, and other industries.