Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RX61DT80N4 found under Gearcase Motor by Sew Eurodrive Inc. The National Stock Number assigned to this part is 3010013941145, 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 RX61DT80N4.