Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2180630 found under Bearing Roller Cylindrical by United Technologies Corporation. The National Stock Number assigned to this part is 3110009300388, 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 2180630.