Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 05-1WA-5X3XGF-3XG NW105-0501 found under Valve Butterfly by W And O Supply Inc. The National Stock Number assigned to this part is 4820016478458, 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 05-1WA-5X3XGF-3XG NW105-0501.