Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number W517C79 found under Solenoid And Pilot by Ross Operating Valve Co. The National Stock Number assigned to this part is 5945002431867, and the Federal Supply Class is 5945 Relays And Solenoids. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like W517C79.