U.S. exports of Parts and Accessories for Materials Testing Machines and Appliances (SITC 87454) totaled $18.8M in August 2026.
Importers of Parts and Accessories for Materials Testing Machines and Appliances paid $748K in duties in August 2026, an average duty rate of 8.75% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Parts and Accessories for Materials Testing Machines and Appliances imports of $8.6M in August 2026 ran 19% above the year-to-date monthly average of $7.2M.
Last updated: August 2026 dataReplacement grips, load cells, extensometers, indenter tips, and other components dedicated to materials testing equipment are classified here as parts and accessories, provided they are identifiable as suitable for use solely or principally with the testing machines of the parent heading. The principal-use determination is central: generic mechanical or electronic components that could serve multiple equipment types may be classified under their own specific headings rather than as parts of testing machines. Importers maintaining service inventories for testing labs should document the dedicated end-use of each component to support classification.
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657 import shipments a month
When a component is not exclusively dedicated to materials testing machines, classification depends on principal use — the use to which the article is chiefly put. If the load cell is designed and marketed primarily for testing machines, it may qualify here; if it is a general-purpose transducer, it is more likely classified under the heading for its own function. Supporting documentation such as product datasheets and sales records helps establish principal use.
Calibration weights and reference standards are generally classified under their own headings for weights rather than as accessories to testing machines, even when sold as part of a calibration kit. The classification of the kit as a whole depends on which component gives it its essential character.
Basic heading 126 of 419 in section 8
Basic heading 87454 · $18.8M of $18.4B
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ImportsExports
Imports
$8.6MYoY · free account
Exports
$18.8MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $82.7M of Parts and Accessories for Materials Testing Machines and Appliances.
Through August 2026 · exports 11 of 12 months reported. Source: U.S. Census Bureau.
Exports · August 2026
destination
customs district
Census does not publish district detail for this classification system.
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Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.