3010-00-542-4004 (3010-542-4004)
3010-00-542-4004 is equivalent to manufacture part number 121770. It is a flexible shaft coupling and is classified under Federal Supply Class 3010 (3010 - Torque Converters and Speed Changers), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 3010 - Torque Converters and Speed Changers and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.