Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number VG1903-1 NO27 found under Relay Electromagnetic by Hiller Companies Inc The. The National Stock Number assigned to this part is 5945014634091, 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 VG1903-1 NO27.