Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C77-2003-4AC2-4072 found under Switch Rotary by Brown Boveri And Cie Ag. The National Stock Number assigned to this part is 5930004695863, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like C77-2003-4AC2-4072.