Find the part number 70070-10052-041 with NSN 1615016918821 by Sikorsky Aircraft Corporation at NSN Parts Finder. Get the best deal on 78286 under FSC 1615 Helicopter Rotor Blades Drive Mechanisms and Components. https://www.nsnpartsfinder.com/rfq/sikorsky-aircraft-corporation/1615016918821/70070-10052-041/