2540-01-417-2230 (277-1/277-2B)
2540-01-417-2230 is equivalent to manufacture part number 277-1/277-2B. It is a air circulating ventilator 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.