2540-01-237-1807 (910 02 20 4219100220)
2540-01-237-1807 is equivalent to manufacture part number 421. It is a vehicular seat frame and is classified under Federal Supply Class 2540 (2540 - Vehicular Furniture and Accessories), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 2540 - Vehicular Furniture and Accessories and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.