Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WUL115A2-640 found under Relay Electromagnet by Electro Switch Corp. The National Stock Number assigned to this part is 5945009479595, 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 WUL115A2-640.