Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number N54-1-9 found under Ball Bearing by Bofors A B. The National Stock Number assigned to this part is 3110121244284, 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 N54-1-9.