Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3RU1126-4BB0 found under Relay Electromagnet by Siemens Energy And Automation Inc. The National Stock Number assigned to this part is 5945015169176, 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 3RU1126-4BB0.