Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D40504 PC 8E found under Relay Electromagnetic by Atmosphere Control International. The National Stock Number assigned to this part is 5945012138358, 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 D40504 PC 8E.