Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1651CA found under Bearing Half Sleeve by Federal Mogul Corporation. The National Stock Number assigned to this part is 3120003908640, 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 1651CA.