Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WU4-14 found under Relay Solid State by Ellis And Watts International Llc. The National Stock Number assigned to this part is 5945004313165, 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 WU4-14.