Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 601031 found under Bearing Roller Tapered by West Salem Machinery Company. The National Stock Number assigned to this part is 3110007572392, and the Federal Supply Class is 3110 Bearings Antifriction Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 601031.