4730-01-570-2920 (090192C 125090192C)
4730-01-570-2920 is equivalent to manufacture part number 12-5. It is a tube fitting locknut and is classified under Federal Supply Class 4730 (4730 - Hose, Pipe, Tube, and Fittings), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 4730 - Hose, Pipe, Tube, and Fittings and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.