Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A3F1-120 50-50 found under Valve Solenoid by Sporlan Valve Co. The National Stock Number assigned to this part is 4810011855287, 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 A3F1-120 50-50.