Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D28255PC100 found under Seat Valve by Dresser Rand Co. The National Stock Number assigned to this part is 4810001264687, and the Federal Supply Class is 4810 Valves Powered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like D28255PC100.