9014.90.20.40 - For use in civil aircraft

This HTS subheading, 9014.90.20.40, specifically covers parts and accessories intended for use in civil aircraft that are designed for direction finding, navigation, or other similar instrumental purposes. These components are critical for the proper functioning of navigational equipment within the aviation sector, ensuring safety and efficiency in flight operations. Examples include specialized brackets, mounting hardware, internal sub-assemblies, or even certain types of display screens that are exclusively manufactured and designated for installation in civil aircraft navigation systems.

Distinguishing this category from its sibling, 9014.90.20.80, is the explicit "For use in civil aircraft" qualifier. While both subheadings address parts and accessories of navigational instruments, this particular category is restricted to those items demonstrably manufactured and intended for civil aviation applications. The sibling category, "Other," would encompass parts and accessories for navigational instruments not specified for civil aircraft, which could include those for marine, land-based, or military applications, or more general-purpose components.

As this is a leaf node within the HTS structure, there are no further subcategories. The classification is definitive at this level based on the specific application of the part or accessory within civil aircraft. Importers must be able to substantiate the civil aircraft use of the component to correctly apply this tariff code, often through technical specifications, invoices, or manufacturer declarations.