2540-00-157-1693 (417210PC2)
2540-00-157-1693 is equivalent to manufacture part number 417210PC2. It is a sight heater housing 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.