Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 49-0001 found under Relay Electromagnet by Aeronautical Instrument And Radio. The National Stock Number assigned to this part is 5945010324735, 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 49-0001.