Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 398340 found under Gearcase Motor by L 3 Communications Corporation. The National Stock Number assigned to this part is 3010009857963, and the Federal Supply Class is 3010 Torque Converters And Speed Changers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 398340.