Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E51DS6 SERIES C1 found under Switch Proximity by Cutler Hammer. The National Stock Number assigned to this part is 5930015343019, 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 E51DS6 SERIES C1.