Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HC4-24VAC found under Relay Electromagnet by Aromat Corp. The National Stock Number assigned to this part is 5945013279287, 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 HC4-24VAC.