Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E40-8048-4 found under Switch Unit Assembl by Fleet Readiness Center Southeast Div Navy. The National Stock Number assigned to this part is 1680011098150, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like E40-8048-4.