Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 103166-001 found under Relay Electromagnet by Aero Systems Engineering Inc. The National Stock Number assigned to this part is 5945012834415, 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 103166-001.