Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 40-13S found under Ball Bearing by Ortman Fluid Power Quincy Compre. The National Stock Number assigned to this part is 3110012439727, 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 40-13S.