8505.90 - Other, including parts:

HTS code 8505.90 encompasses "Other" items within the broader category of electromagnets, permanent magnets, and related devices. This includes a variety of components and accessories that do not fit into the more specific subheadings of this chapter. Essentially, if a device utilizes magnetic principles for holding, lifting, or other operational functions and is not specifically classified elsewhere in heading 8505, it will likely fall under this residual category.

This classification is distinct from its siblings. For instance, 8505.20.00.00 specifically covers electromagnetic couplings, clutches, and brakes, which are distinct functional units designed for power transmission or stopping. Similarly, the explicit mention of "permanent magnets and articles intended to become permanent magnets after magnetization" in another sibling category highlights a focus on the magnetic material itself rather than the complete apparatus. Therefore, 8505.90 serves as a catch-all for remaining magnetic devices and their associated parts.

The subcategories within 8505.90 provide further granularity. They include specific types of magnetic equipment like electromagnetic lifting heads (8505.90.30.00) and work holders (8505.90.40.00), which are designed for specific industrial applications. Additionally, there are provisions for electromagnets used in specialized medical equipment like MRI apparatus (8505.90.70.00). The residual "Other" designation (8505.90.75.01) is reserved for any remaining items that do not meet the criteria for these more specific sub-classifications within 8505.90.