Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number K40014 found under Nut Plain Hexagon by Navy United States Department Of. The National Stock Number assigned to this part is 5310015573322, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like K40014.