7307.19.90.80 - Other

This classification, HTS 7307.19.90.80, encompasses "Other" fittings of iron or steel that are cast, but do not fall into any more specific subcategories. These are typically articles used to join, connect, or terminate pipes or tubes made of iron or steel, where the fitting itself has been produced through a casting process. Examples may include various specialized connectors, adaptors, or structural elements not otherwise defined.

Distinguishing this category from its sibling, HTS 7307.19.90.60 (Threaded), is the method of connection or joining. While threaded fittings rely on screw threads for assembly, the fittings classified under 7307.19.90.80 will utilize other means of connection or are designed for applications where threading is not the primary joining mechanism. This could include compression fittings, flanged connections that are not threaded, or other specialized coupling methods.

As this is a leaf node within the HTS structure, there are no further subcategories. Therefore, proper classification within 7307.19.90.80 relies on a thorough examination of the fitting's specific design, intended use, and the absence of any defining characteristics that would place it in a more narrowly defined category. If a cast iron or steel fitting cannot be specifically classified as threaded or by any other designated type at a higher level, it will fall into this residual "Other" designation.