Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R8449F found under Core Assembly Radiator by Thermal Engineering International. The National Stock Number assigned to this part is 2930004190892, and the Federal Supply Class is 2930 Engine Cooling System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R8449F.