Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2578-1 found under Rotor Assembly by Fl Aerospace Corp Janitrol Aero. The National Stock Number assigned to this part is 6105010282028, and the Federal Supply Class is 6105 Motors Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 2578-1.