Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number F2004 found under Nut Plain Welding by Haldex Brake Products Corporation. The National Stock Number assigned to this part is 5310002737769, 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 F2004.