Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FIG180-2IN found under Valve Y by Lunkenheimer Co. The National Stock Number assigned to this part is 4820003098874, 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 FIG180-2IN.