Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 615 612 TIMKEN found under Parts Kit Bearing Replacement Me by Kaman Industrial Technologies. The National Stock Number assigned to this part is 3120015743622, 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 615 612 TIMKEN.