Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R7707242-4REV9 found under Switch Push by Westinghouse Electric Corp. The National Stock Number assigned to this part is 5930002966670, 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 R7707242-4REV9.