Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R780-1D90 found under Relay Electromagnetic by Iv Electronic Klaus Vespermann Kg. The National Stock Number assigned to this part is 5945000520901, 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 R780-1D90.