Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5199945 found under Shell Bearing by Mtu America Incorporated. The National Stock Number assigned to this part is 3120010553634, 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 5199945.