Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 500 00574 39 found under Relay Electromagnet by Alabama Aircraft Industries Inc. The National Stock Number assigned to this part is 5945014188094, 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 500 00574 39.