Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1504503 found under Blade Set Steam Tur by Westinghouse Electric Corp. The National Stock Number assigned to this part is 2825003139710, and the Federal Supply Class is 2825 Steam Turbines And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1504503.