7307.21.50.00 - Other

This HTS code, 7307.21.50.00, covers "Other" flanges made of stainless steel. These flanges are specifically for use with tubes or pipes and are manufactured from iron or steel. Within the broader category of stainless steel flanges, this particular classification is for those that do not fit into the "Not machined, not tooled and not otherwise processed after forging" designation (7307.21.10.00).

Therefore, HTS 7307.21.50.00 is intended for stainless steel flanges that have undergone some form of machining, tooling, or other processing after the initial forging stage. This processing might include operations like threading, grooving, drilling of bolt holes, or surface treatments that alter the flange's dimensions, shape, or finish beyond what is achieved during forging alone. The purpose is to provide a more finished and often application-specific component for connecting pipes and tubes.

As this is a leaf node in the HTS, there are no further subdivisions. The distinction between this category and its sibling hinges entirely on the post-forging processing. If a stainless steel flange has been subjected to any machining or tooling after forging, it would be classified here. Conversely, a flange that has only undergone the forging process without subsequent modifications would fall under the sibling category.