Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2K3129 found under Relay Electromagnet by Marine Electric Systems Inc. The National Stock Number assigned to this part is 5945011891874, 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 2K3129.