Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 03 4018 found under Valve Solenoid by Lexair Intl Corp. The National Stock Number assigned to this part is 4810013781599, 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 03 4018.