9401.91.90 - Other

This category, HTS Code 9401.91.90, encompasses "Other" parts of wooden seats not otherwise specified. It serves as a residual classification for components of wooden seats that do not fall under more specific provisions. The primary criterion for inclusion is that the part is intended for use with a wooden seat falling within the scope of heading 9401 and is itself made of wood.

This classification distinguishes itself from its siblings by excluding parts specifically designated for seats used in motor vehicles (9401.91.15.00) or parts of bent wood seats (9401.91.20.00). Therefore, while these also represent parts of wooden seats, 9401.91.90 is for components of wooden seats that are neither specifically for automotive use nor made of bent wood.

Within this category, two subcategories exist to further refine classification. HTS Code 9401.91.90.10 covers parts intended for children's highchairs, booster seats, and similar specialized seating. The remaining parts of wooden seats that do not meet the criteria for this specific subdivision are classified under 9401.91.90.90, "Other." This hierarchical structure allows for more precise classification based on the intended end-use or specific construction of the wooden seat part.