Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 7544469 found under Gearbox Assembly St by Siemens Industry Inc. The National Stock Number assigned to this part is 3010016437975, 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 7544469.