8529.90.97.40 - Of radio navigational aid apparatus (except radar)

This HTS category, 8529.90.97.40, specifically designates parts and accessories that are suitable for use with radio navigational aid apparatus, excluding radar systems. Such apparatus are instrumental in determining a vessel's or aircraft's position and course through the use of radio signals. Examples of equipment that would fall under this classification include components for GPS receivers, DME (Distance Measuring Equipment), VOR (VHF Omnidirectional Range) equipment, and ILS (Instrument Landing System) receivers, when these parts are designed for use with these specific radio-based navigation tools.

Distinguishing this category from its siblings is crucial for accurate classification. Specifically, 8529.90.97.20 covers parts and accessories for radar apparatus. Therefore, if a component is designed for both radar and radio navigational aid equipment, it would likely be classified under the radar heading unless its principal use is clearly with the non-radar radio navigational aid. Furthermore, the sibling category 8529.90.97.60, designated as "Other," encompasses parts and accessories for radio remote control apparatus, a distinct function from radio navigational aids.

As this HTS code represents a leaf node, there are no further subcategories. Classification at this level requires careful consideration of the intended application and functionality of the part or accessory. The defining characteristic is its specific suitability for integration with radio navigational aid apparatus, differentiating it from parts for other types of equipment covered by headings 8524 to 8528.