Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M16DIN985-1-4571 found under Nut Self Locking He by Din Deutsches Institut Fuer Norm. The National Stock Number assigned to this part is 5310121541238, 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 M16DIN985-1-4571.