Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HCS1004 022 found under Relay Electromagnetic by Heatcon Composite Systems Inc. The National Stock Number assigned to this part is 5945016641994, 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 HCS1004 022.