Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 450 016 11 found under Nut Plain Hexagon by Rolls Royce Marine North America. The National Stock Number assigned to this part is 5310016020675, 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 450 016 11.