Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CBK-M3MK found under Switch Rotary by Abb Control Inc. The National Stock Number assigned to this part is 5930016119046, 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 CBK-M3MK.