Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 15A5123 found under Relay Electromagnetic by Sperry Rand Corp. The National Stock Number assigned to this part is 5945003261839, 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 15A5123.