Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S47A6646A63 found under Reactor by Westinghouse Electric Corp. The National Stock Number assigned to this part is 5950011355437, and the Federal Supply Class is 5950 Coils And Transformers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S47A6646A63.