Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BR5-1KC1-18V found under Relay Electromagnet by Microsemi Corp. The National Stock Number assigned to this part is 5945004709278, 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 BR5-1KC1-18V.