Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BJ12TC16M17 found under Bearing Sleeve by Timken Company The. The National Stock Number assigned to this part is 3120004506270, 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 BJ12TC16M17.