Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number U108 found under Bearing Ball Annular by British Aerospace Inc. The National Stock Number assigned to this part is 3110001599195, and the Federal Supply Class is 3110 Bearings Antifriction Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like U108.