Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AN340C4 found under Nut Plain Hexagon by Gw Technologies Pty Ltd. The National Stock Number assigned to this part is 5310009349748, 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 AN340C4.