Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 550-000-741 found under Gear Assembly Speed Increaser by Afp Imaging Corporation. The National Stock Number assigned to this part is 3010012834501, 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 550-000-741.