8413.91.90.96 - Other

This HTS category, 8413.91.90.96, encompasses "Other" parts for pumps, specifically those not otherwise classified within the detailed breakdowns of pump parts. It serves as a residual category for components integral to the operation of various types of pumps, including but not limited to centrifugal, reciprocating, and rotary pumps, when these parts do not fall under more specific subheadings. Examples might include specialized seals, certain types of shafts or couplings not specifically enumerated elsewhere, or any other constituent part of a pump for which a more precise classification is not available.

The distinction of this category from its siblings lies in its broad exclusion. For instance, sibling categories like "Of hydraulic fluid power pumps" or specific references to parts of subheadings 8413.30.90 and 8413.50.00 are more precisely defined by their application to particular pump types or their direct relationship to specified pump subheadings. This "Other" category is where pump parts are classified when they are not exclusively for hydraulic fluid power systems and do not fit into any other pre-defined component classifications within heading 8413.

As this node represents a leaf in the HTS classification structure, there are no further subcategories. Therefore, the classification of a part under 8413.91.90.96 relies on a thorough examination to ensure it is indeed a component of a pump and cannot be classified under any more specific subheading within the broader chapter and heading. The residual nature of this classification necessitates careful consideration of the function and form of the part in relation to the pump it is intended for.