Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 232-3419 found under Valve Check by Landoll Corporation. The National Stock Number assigned to this part is 4820012679409, 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 232-3419.