Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 58109-1 found under Bearing Ball Annular by Orbit International Corp. The National Stock Number assigned to this part is 3110010446622, 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 58109-1.