Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4X679 found under Switch Pressure by Grainger Div Of W W Grainger Inc. The National Stock Number assigned to this part is 5930013827639, 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 4X679.