Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 645A179-12 found under Bearing Roller Airframe by General Electric Co. The National Stock Number assigned to this part is 3110006203262, 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 645A179-12.