8307.90.60.00 - Other

This HTS category, 8307.90.60.00, encompasses flexible tubing of base metal, excluding stainless steel and copper alloys, that are specifically *without* fittings. These items are typically used for conveying fluids or gases in various industrial, mechanical, and domestic applications where flexibility and durability are required. The "other base metal" designation signifies that the tubing is constructed from metals not otherwise specified in preceding subheadings within the 8307 chapter, such as aluminum, zinc, or lead.

It is crucial to distinguish this category from its sibling, 8307.90.30.00, which covers flexible tubing of other base metal *with* fittings. The presence or absence of attached connectors, couplings, or other joining mechanisms is the primary differentiator. Therefore, goods classified here will be solely the flexible tubing itself, without any integrated or attached fittings.

As a leaf node within the HTS, there are no further subcategories under 8307.90.60.00. Classification into this specific code relies entirely on the material of the base metal (not stainless steel or copper alloys) and the absence of any pre-attached fittings.