Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 615748C1 found under Bearing Thrust And Journal by Navistar Intl Corp. The National Stock Number assigned to this part is 3120002366552, 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 615748C1.