Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KC9138 found under Bearing Half Sleeve by Diamond Reo Truck Co. The National Stock Number assigned to this part is 3120007539369, and the Federal Supply Class is 3120 Bearings Plain Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like KC9138.