Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 80-54356-00 found under Water Valve by U Line Corporation. The National Stock Number assigned to this part is 4820016734923, 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 80-54356-00.