Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KSP6A found under Bearing Plain Track by Timken Company The. The National Stock Number assigned to this part is 3120015890017, 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 KSP6A.