Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KSC270216F found under Ring Bearing Inner by Kamatics Corporation. The National Stock Number assigned to this part is 3110016644522, 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 KSC270216F.