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SITCSection 7
U.S. imports of parts for nonelectric industrial or laboratory furnaces and ovens (SITC 74139) totaled $9.5M in April 2026, traded with 42 countries.
Importers of Parts for Nonelectric Industrial or Laboratory Furnaces and Ovens paid $1.7M in duties in April 2026 — an effective duty rate of 20% on $8.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Parts for Nonelectric Industrial or Laboratory Furnaces and Ovens imports of $9.5M in April 2026 ran 24% below the year-to-date monthly average of $12.4M.
Last updated: April 2026 dataReplacement and component parts for nonelectric industrial and laboratory furnaces and ovens occupy a specialized niche in the capital equipment supply chain, serving sectors from metals processing and ceramics to chemical manufacturing. Classification hinges on whether a part is dedicated to a specific furnace type or is a general-purpose component, a distinction that customs examiners scrutinize closely. Importers should document the parent equipment's fuel type and application to support the correct SITC heading assignment and avoid reclassification into broader machinery parts categories.
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The key test is specificity: parts designed or adapted exclusively for nonelectric industrial or laboratory furnaces and ovens fall under this heading, while general-purpose fasteners, seals, or structural elements that serve multiple equipment types typically classify elsewhere. Maintaining technical documentation linking the part to a specific furnace model strengthens the classification position.
Yes. The parent furnace's energy source (gas-fired, oil-fired, or other nonelectric) is relevant to confirming the correct heading. Parts for electric furnaces fall under a separate SITC category, so importers should specify the furnace's operating principle in commercial invoices and entry documentation.
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Monthly import values over time