Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3551041401 found under Insert Flexible Coupling by Grandi Motori. The National Stock Number assigned to this part is 3010013241321, 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 3551041401.