9031.90.21.00 - Of profile projectors

This HTS category, 9031.90.21.00, specifically covers parts and accessories that are exclusively designed for use with profile projectors. Profile projectors are precision optical instruments used for magnifying and inspecting the profile or contour of small objects. Therefore, this classification is reserved for components such as lenses, mirrors, illumination systems, stage components, or specialized fixtures that are integral to the functioning of a profile projector. The key determining factor for classification here is the direct and specialized relationship to the profile projector itself.

This category is distinguished from its sibling category, "Of other optical instruments and appliances, other than test benches," by its singular focus on profile projectors. While the sibling category encompasses parts for a broader range of optical instruments like microscopes or refractometers, this node is strictly limited to accessories and parts intended for the unique application of profile projection. It is also distinct from the "Other" sibling category, which serves as a residual category for parts and accessories not otherwise specified.

As this node represents a leaf in the HTS classification structure, there are no further subcategories. Classification at this level is therefore definitive for parts and accessories that meet the criteria of being specifically made for profile projectors. Importers should ensure that the components in question are demonstrably compatible with and intended for use in the operation of profile projectors, rather than more general optical or measuring equipment.