9024.90.00 - Parts and accessories

This HTS category, 9024.90.00, encompasses parts and accessories specifically designed for machines and appliances used to test the mechanical properties of materials. This includes components such as specialized fixtures, grips, sensors, digital displays, calibration weights, and any other article that is integral to the functioning of hardness testers, tensile testers, compression testers, flexural testers, and similar equipment for evaluating metals, wood, textiles, paper, plastics, and other substances.

While sibling categories like 9024.10.00.00 cover the complete machines for testing metals, and 9024.80.00.00 covers other types of testing machines, this heading is exclusively for the components and accessories that are not machines themselves but are essential for their operation. The classification hinges on whether an item is intended for use with the machines described in heading 9024, rather than being a testing machine in its own right.

Further subdivisions within this category exist to distinguish parts and accessories based on their intended application. Category 9024.90.00.40 specifically relates to parts and accessories for machines and appliances for testing metals, while 9024.90.00.80 covers parts and accessories for other types of material testing machines. This detailed breakdown facilitates more precise tariff application based on the ultimate use of the component part.