Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AN4141-3 found under Adapter Drive Splin by U S Dept Of Transportation Federal. The National Stock Number assigned to this part is 3010007100525, 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 AN4141-3.