Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number N500PC139 found under Head Water Valve by Curtiss Wright Corp. The National Stock Number assigned to this part is 4310002167825, and the Federal Supply Class is 4310 Compressors And Vacuum Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like N500PC139.