Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 020-524 found under Relay Electromagnet by Ampex Data Systems Corporation. The National Stock Number assigned to this part is 5945009286824, 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 020-524.