Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 14166 found under Nut Plain Plate by 80 20 Inc. The National Stock Number assigned to this part is 5310016173762, 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 14166.