Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5167660113 found under Valve Check by Alpine Sales And Rental Corp. The National Stock Number assigned to this part is 4820016188272, 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 5167660113.