8411.99.10.40 - For use in civil aircraft

This HTS category, 8411.99.10.40, specifically classifies parts for civil aircraft gas turbines that are made of cast iron. Crucially, these parts must be in a state of completion that is no more advanced than basic cleaning. They may be machined only for the removal of fins, gates, sprues, and risers, or to allow for their placement within finishing machinery. This detailed specification ensures that only minimally processed cast-iron components for aircraft engines fall under this heading, emphasizing their raw or semi-finished nature.

This classification is distinct from its sibling category, 8411.99.10.80 "Other." The sibling category encompasses a broader range of parts for aircraft gas turbines that do not meet the specific criteria of being cast-iron and having undergone only basic cleaning and limited machining. Therefore, any cast-iron parts that are more extensively machined, forged, or made from other materials would be classified elsewhere within the "Other" subcategory. The defining characteristic here is the material (cast iron) and the very limited scope of manufacturing processes applied.

As this HTS category is a leaf node, there are no further subcategories. Classification decisions within this heading will depend entirely on whether a part meets the stringent criteria of being a cast-iron component for civil aircraft gas turbines, processed only to the extent of cleaning and removal of casting imperfections or preparation for further finishing. The absence of subcategories means that the distinctions lie solely within the definition of the goods themselves, requiring careful examination of their material composition and manufacturing stage.