Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 247E1642A found under Clutch Assembly Friction by Koehring Co. The National Stock Number assigned to this part is 3010006021074, 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 247E1642A.