Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E940001 ITEM 4 found under Switch Push by Federal Equipment Company. The National Stock Number assigned to this part is 5930013943421, 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 E940001 ITEM 4.