9014.90 - Parts and accessories:

This HTS category, 9014.90, encompasses all parts and accessories for navigational instruments and appliances classified under heading 9014, excluding those specifically enumerated in preceding subheadings. This includes components, subassemblies, and fittings that are designed to be incorporated into or used in conjunction with direction-finding compasses, aeronautical and space navigation instruments, and other general navigational apparatus. The crucial defining factor is their intended function as integral elements or supplementary items for the broader navigational equipment within heading 9014.

Unlike its sibling categories, 9014.10, 9014.20, and 9014.80, which classify the complete navigational instruments and appliances themselves, this subheading is dedicated solely to the constituent parts and accessories. Therefore, if an item is a fully functional navigational instrument, it would fall under one of the sibling categories. However, if an item is merely a component, such as a gyroscope, a display screen, a casing, or a specialized sensor intended for use in such instruments, then it is properly classified here.

The subcategories within 9014.90 provide further specificity by referencing the parent articles from which these parts and accessories are derived. For instance, subheadings like 9014.90.10.00 and 9014.90.20 distinguish parts based on whether they pertain to specific types of aeronautical or space navigation equipment. Other subheadings, such as 9014.90.40.00 and the residual category 9014.90.60.00 for "Other," allow for the detailed classification of a wide array of components and accessories not directly linked to the more precisely defined prior subcategories, ensuring comprehensive coverage for all eligible parts and accessories.