Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WU100D3-286 found under Relay Electromagnetic by Electro Switch Corp. The National Stock Number assigned to this part is 5945004779298, 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 WU100D3-286.