Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 17-257A found under Solenoid Electrical by Detroit Coil Company. The National Stock Number assigned to this part is 5945007615822, 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 17-257A.