U.S. imports of All Other Miscellaneous General Purpose Machinery Manufacturing (NAICS 333998) totaled $2.1B in August 2026, imported from 126 countries.
Importers of All Other Miscellaneous General Purpose Machinery Manufacturing paid $239.0M in duties in August 2026, an average duty rate of 11.48% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. All Other Miscellaneous General Purpose Machinery Manufacturing imports of $2.1B in August 2026 ran 11% above the year-to-date monthly average of $1.9B.
Last updated: August 2026 dataNAICS 333998 is a residual manufacturing category capturing general-purpose machinery not classified elsewhere in the 3339 group — including centrifuges, gaskets and packing equipment, industrial robots not elsewhere classified, and specialty mechanical handling devices. The breadth of this category means that HTS classification of imported goods falling here can span multiple chapters (84, 85, and 90), requiring careful product-by-product analysis. Trade professionals should treat each product type individually for duty and trade-remedy purposes rather than assuming uniform tariff treatment across the category.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
71.2K import shipments a month
Because NAICS 333998 is a catch-all for diverse machinery types, the corresponding HTS subheadings are spread across chapters 84, 85, and sometimes 90, depending on the machine's primary function and operating principle. Each product must be classified individually based on its technical characteristics, not by its NAICS code.
Since 333998 encompasses many distinct product types, Section 301 or antidumping exposure varies by specific HTS subheading and country of origin. Importers should determine the correct 10-digit HTS code for each product and check the current trade-remedy order lists before shipment rather than applying a blanket assumption to the entire category.
National industry 1 of 7 in naics industry 33399
National industry 333998 · $2.1B of $4.1B
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Imports · August 2026
origin
China pays 34.7% duty; Mexico 3.7%.
customs district
Census does not publish district detail for this classification system.
destination
Census publishes state breakdowns for NAICS to the 4-digit level only. See NAICS 3339 for those.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$2.1BYoY · free account
Exports
$1.4BYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $22.1B of All Other Miscellaneous General Purpose Machinery Manufacturing and exported $16.3B.
Through August 2026. Source: U.S. Census Bureau.