Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BPAH18C found under Valve Gate by Sure Marine Service Inc. The National Stock Number assigned to this part is 4820016068499, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BPAH18C.