8411.99.10.80 - Other

This HTS category, 8411.99.10.80, encompasses parts of aircraft gas turbines that are not specifically categorized under other headings. This includes components that have undergone initial processing such as cleaning but have not been significantly advanced beyond basic preparation for further manufacturing. The defining characteristic of this subcategory is its limited degree of processing, specifically focusing on cast-iron parts that are only machined to remove casting imperfections like fins, gates, sprues, and risers, or to prepare them for subsequent machining processes.

This classification distinguishes itself from its sibling category, 8411.99.10.40, by focusing on parts not intended for or not yet designated for use in civil aircraft. While both fall under parts of aircraft gas turbines, this specific subcategory is for those that do not meet the criteria for "civil aircraft" use, or where that specific application is not the primary distinguishing feature for classification at this level. The emphasis is on the material (cast-iron) and the limited scope of finishing operations performed.

As a leaf node, this category does not have further subcategories. Therefore, the classification hinges on the precise nature of the cast-iron part and the extent of its processing. Importers should ensure that the parts classified here are indeed cast-iron and have only undergone the rudimentary cleaning and machining described to avoid misclassification.