Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 212-4078-2-4000 found under Switch Rotary by A B Electronics Products Group Plc. The National Stock Number assigned to this part is 5930004453572, 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 212-4078-2-4000.