3460-01-007-5304 (ZT331S)
3460-01-007-5304 is equivalent to manufacture part number 2189. It is a microstop countersink and is classified under Federal Supply Class 3460 (3460 - Machine Tool Accessories), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 3460 - Machine Tool Accessories and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.