Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BE1 51 27R U5E B40 B0N1F found under Relay Solid State by Basler Electric Company. The National Stock Number assigned to this part is 5945014851453, 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 BE1 51 27R U5E B40 B0N1F.