Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 54000-40069 found under Coupling Half Shaft by Aai Corporation. The National Stock Number assigned to this part is 3010000016783, 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 54000-40069.