Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E48278 found under Clutch Sliding Sleeve Nonvehicular by Koehring Co. The National Stock Number assigned to this part is 3010008665457, 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 E48278.