Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 45401163 found under Valve Assembly Suction by W B Arnold Company Inc. The National Stock Number assigned to this part is 4810013008319, 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 45401163.