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The Aerospace Industries Association is the premier trade association representing major aerospace and defense manufacturers and suppliers in the United States and was founded in 1919. AIA's National Aerospace Standards (NAS) program has supported the aerospace and defense industry since 1941. The NAS parts (bolts, rivets, screws, washers, etc.) are state-of-the-art, high strength, precision fasteners that are used throughout the industry in both military and commercial applications. In 2014, AIA in partnership with IHS and PARTsolutions created a 3D model catalog that provides CAD models of the most used NAS parts in 150 different CAD formats and versions. Companies using the NAS 3D model catalog will reduce design time, improve productivity, and increase consistency and accuracy of models being used in the design process.