Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6609-003-000-0 found under Coupling Fluid by Wichita Clutch Co Inc. The National Stock Number assigned to this part is 3010003511285, 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 6609-003-000-0.