Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number N49-1 found under Nut Plain Hexagon by Meritor Heavy Vehicle Systems Llc. The National Stock Number assigned to this part is 5310003018187, 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 N49-1.