U.S. exports of Gaskets, Packing & Sealing Devices (NAICS 339991) totaled $501.9M in August 2026.
Importers of Gaskets, Packing & Sealing Devices paid $37.2M in duties in August 2026, an average duty rate of 9.35% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataGaskets, packing, and sealing devices are critical maintenance, repair, and operations (MRO) inputs for the automotive, aerospace, oil-and-gas, and industrial machinery sectors, where material specification — rubber, PTFE, metallic, or composite — drives both performance requirements and HTS classification. Section 301 tariffs affect a significant share of sealing device imports sourced from China, making origin and material documentation especially important for cost management. Classification turns on the material composition and whether the article is a complete sealing assembly or a raw packing material, distinctions that customs examiners scrutinize closely.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
86.4K import shipments a month
The HTS classifies sealing articles primarily by their constituent material — rubber gaskets fall under Chapter 40, PTFE or other plastics-based seals under Chapter 39, and metallic gaskets under Chapter 84 or 85 depending on their application. When a gasket is made of multiple materials, the essential character rule under GRI 3 determines the heading, making a detailed material breakdown essential for accurate entry.
Many gaskets and sealing devices imported from China are subject to Section 301 tariffs. The applicable list and rate depend on the specific 10-digit HTS subheading, so importers should verify current Section 301 coverage for each product line and consider whether an exclusion or alternative sourcing strategy is warranted.
National industry 1 of 6 in naics industry 33999
National industry 339991 · $501.9M of $860.2M
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Exports · August 2026
destination
customs district
Census does not publish district detail for this classification system.
origin
Census publishes state breakdowns for NAICS to the 4-digit level only. See NAICS 3399 for those.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$400.5MYoY · free account
Exports
$501.9MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $4.4B of Gaskets, Packing & Sealing Devices and exported $5.1B.
Through August 2026. Source: U.S. Census Bureau.