Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GS4043 found under Relay Electromagnet by Hamilton Sundstrand Corporation. The National Stock Number assigned to this part is 5945009590476, 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 GS4043.