Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BK181B1822 found under Valve Poppet by Dresser Rand Co. The National Stock Number assigned to this part is 2825000572122, 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 BK181B1822.