7307.19.30.70 - With mechanical, push-on (rubber compression) or flanged joints attached

This HTS subcategory, 7307.19.30.70, specifically covers cast iron or steel pipe and tube fittings designed with mechanical, push-on (rubber compression), or flanged joints. These fittings are characterized by the integrated method of connection, which relies on mechanical fastening, the compression of a rubber seal, or the use of flanges for bolting together. They are integral components used to join, connect, or adapt sections of piping systems within various industrial and commercial applications.

Distinguishing this category from its siblings, 7307.19.30.60 covers threaded fittings, where connections are made through screw threads. The sibling category 7307.19.30.85 encompasses all other cast fittings not otherwise specified, implying a broader catch-all for types that don't fit the mechanical, push-on, flanged, or threaded descriptions. Therefore, 7307.19.30.70 is precisely for those cast fittings that utilize these specific jointing mechanisms rather than threading.

As this is a leaf node, there are no further subcategories. Classification within 7307.19.30.70 relies on the confirmed presence of mechanical, push-on (rubber compression), or flanged joints on cast iron or steel pipe fittings, distinguishing them from other types of cast fittings based on their connection method.