Parts suitable for use with multiple types of leather machinery — for example, a motor or bearing that fits both tanning drums and footwear lasting machines — are generally classified as parts of general use under a broader HTS heading rather than under the specific leather machinery parts heading. Only parts identifiable as designed principally for leather industry machinery should be classified under SITC 72488. A binding ruling from CBP is advisable for ambiguous components.

Importers should provide a detailed commercial invoice identifying each part by its technical description, part number, and the specific parent machine it is designed for. If the parts are sourced from a country subject to Section 301 tariffs, the entry must also reflect any applicable additional duties. Manufacturer technical documentation linking the part to its parent machine type strengthens the classification and can expedite CBP review.