Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RAK1 15 16 found under Bearing Unit Ball by Timken Company The. The National Stock Number assigned to this part is 3130001336456, and the Federal Supply Class is 3130 Bearings Mounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RAK1 15 16.