9405.99.40 - Other

This category, HTS 9405.99.40, encompasses "Other" parts for lamps and lighting fittings, not elsewhere specified or included, within the broader scope of Section XX, Chapter 94. It covers a diverse range of components that are not specifically enumerated in other subcategories. These parts contribute to the assembly, function, or aesthetic of various lighting fixtures, excluding finished lighting units or illuminated signs.

Distinct from its sibling category, 9405.99.20, which specifically designates parts made of brass, HTS 9405.99.40 is not material-specific. Therefore, this category serves as a residual classification for parts made from materials other than brass, such as plastic, glass, steel, or other non-ferrous metals not otherwise specified. The key differentiating factor is the absence of a brass construction, which would place the item under the sibling category.

The subcategories within 9405.99.40 provide further refinement based on specific types of parts and their materials. HTS 9405.99.40.10 and 9405.99.40.20 specifically classify lampposts and their bases made from cast iron and aluminum, respectively. The final subcategory, 9405.99.40.90, acts as a further residual for any remaining "other" parts of lampposts and their bases that do not fit into the cast iron or aluminum classifications.