Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 16E3504-807 found under Relay Assembly by Interconnect Wiring Harnesses Inc. The National Stock Number assigned to this part is 5945014393112, 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 16E3504-807.