HS code · 6-digit subheading
HS Code 4009.42 – Rubber; vulcanised (other than hard rubber), tubing, piping and hoses, reinforced or otherwise combined with materials other than metal or textiles, with fittings
HS code 4009.42 is the 6-digit subheading for rubber, vulcanised (other than hard rubber), tubing, piping and hoses, reinforced or otherwise combined with materials other than metal or textiles, with fittings. It is used for custom chemical transfer hose assemblies, aerospace hydraulic lines (composite reinforced), high-pressure gas lines with specialized fittings, medical-grade tubing assemblies with connectors and industrial solvent transfer hose assemblies.
What HS 4009.42 covers
This HS code covers vulcanised rubber tubing, piping, and hoses reinforced with materials other than metal or textiles, and supplied with fittings. These are highly specialized, ready-to-install assemblies designed for critical applications where unique reinforcement properties (e.g., extreme chemical resistance, high-temperature stability, specific flexibility) are combined with appropriate fittings. Industries like aerospace, pharmaceutical manufacturing, advanced chemical processing, and semiconductor fabrication are key consumers. Importers are often end-users in these high-tech sectors or specialized distributors providing custom solutions. Exporters are typically manufacturers capable of producing and assembling hoses with advanced materials and precision fittings. Trade in these products demands strict adherence to performance specifications, material certifications, and often, specific industry or regulatory approvals due to their critical operational roles.
- Covers
- Custom chemical transfer hose assemblies
- Aerospace hydraulic lines (composite reinforced)
- High-pressure gas lines with specialized fittings
- Medical-grade tubing assemblies with connectors
- Industrial solvent transfer hose assemblies
- Cryogenic transfer hose assemblies
- Examples
- Swagelok PTFE-lined hose assemblies
- Parker Parflex 520N Assemblies
- Gates MegaFlex Hose Assemblies
- Eaton Aeroquip AQP Assemblies
Codes often confused with 4009.42
Common mistake. This code is often mistaken for 400941 (same reinforcement, without fittings) or 400922 (metal-reinforced with fittings). The combination of 'other than metal or textile' reinforcement and 'with fittings' is crucial.
Top exporters and importers of HS code 400942, 2025
In 2025, the largest exporter of HS code 400942 in UN Comtrade data was Bulgaria, with 13% of world exports; the largest importer in UN Comtrade data was Germany, with 12% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 Bulgaria $260M 13% of world exports
- 2 Poland $244M 12% of world exports
- 3 Germany $161M 8.1% of world exports
World total: $2.0B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $220M 12% of world imports
- 2 United States $174M 9.7% of world imports
- 3 United Arab Emirates* ~$88M 4.9% of world imports · partner records ↗
World total: $1.8B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM codes for 4009.42 2
Brazil splits HS 4009.42 into 2 NCM codes, Mercosur's 8-digit tariff lines.
- 4009.42.10 Fitted rubber hoses, other materials, 17.3 MPa+Com uma pressão de ruptura igual ou superior a 17,3 MPa
- 4009.42.90 Fitted rubber hoses, other materials, sub-17.3 MPaOutros
All Brazil NCM codes in heading 40.09 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 4009.42
What is HS code 400942?
HS code 400942 is a 6-digit subheading in the Harmonized System that covers: Rubber; vulcanised (other than hard rubber), tubing, piping and hoses, reinforced or otherwise combined with materials other than metal or textiles, with fittings. This HS code covers vulcanised rubber tubing, piping, and hoses reinforced with materials other than metal or textiles, and supplied with fittings. These are highly specialized, ready-to-install assemblies designed for critical applications where unique reinforcement properties (e.g., extreme chemical resistance, high-temperature stability, specific flexibility) are combined with appropriate fittings. Industries like aerospace, pharmaceutical manufacturing, advanced chemical processing, and semiconductor fabrication are key consumers. Importers are often end-users in these high-tech sectors or specialized distributors providing custom solutions. Exporters are typically manufacturers capable of producing and assembling hoses with advanced materials and precision fittings. Trade in these products demands strict adherence to performance specifications, material certifications, and often, specific industry or regulatory approvals due to their critical operational roles.
What products fall under HS code 400942?
Custom chemical transfer hose assemblies, aerospace hydraulic lines (composite reinforced), high-pressure gas lines with specialized fittings, medical-grade tubing assemblies with connectors, industrial solvent transfer hose assemblies, cryogenic transfer hose assemblies
What are common misclassifications for HS code 400942?
This code is often mistaken for 400941 (same reinforcement, without fittings) or 400922 (metal-reinforced with fittings). The combination of 'other than metal or textile' reinforcement and 'with fittings' is crucial.
Which countries are the top exporters of goods under HS code 400942?
In 2025, the top exporters of HS code 400942 in UN Comtrade data were Bulgaria ($260M, 13% of world exports), Poland ($244M) and Germany ($161M). World exports came to about $2.0B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 400942?
In 2025, the top importers of HS code 400942 in UN Comtrade data were Germany ($220M, 12% of world imports), the United States ($174M) and the United Arab Emirates (about $88M). World imports came to about $1.8B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 400942 structured?
HS code 400942 is a 6-digit subheading under the Harmonized System. The first 2 digits (40) identify the chapter, digits 3-4 (09) identify the heading, and digits 5-6 (42) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 400942?
Brazil splits HS code 400942 into 2 NCM codes: 4009.42.10 (Fitted rubber hoses, other materials, 17.3 MPa+), 4009.42.90 (Fitted rubber hoses, other materials, sub-17.3 MPa). The first 6 digits of each match the HS code.