Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9J949PC217-220-221 found under Packing Assy Carbon by Westinghouse Electric Corp. The National Stock Number assigned to this part is 2825003948710, 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 9J949PC217-220-221.