Product classification
HS code for Plastic pipe fitting: 3917.40
Plastics, tube, pipe and hose fittings (e.g. joints, elbows, flanges).
Classification of plastic pipe fitting under HS 3917.40
HS code 3917.40 covers fittings for tubes, pipes, and hoses made of plastic. These components are classified based on their function within a piping system, which includes joining lengths of pipe, changing the direction of flow, or adapting different pipe sizes. Under the Harmonized System, heading 3917 is divided between the actual tubes/pipes and the fittings used to connect them. Classification under 3917.40 requires the item to be made of plastic and designed specifically for use with the types of pipes described in the earlier subheadings of 3917. This includes fittings for both rigid and flexible piping systems. The technical specifications, such as pressure ratings or the specific type of polymer (PVC, PE, or PP), do not change the primary four-digit heading but are essential for determining the correct six-digit subheading in international trade.
- Covers
- Plastic pipe elbows and tees
- Plastic couplings and unions
- Plastic flanges for piping systems
- Plastic bushings and reducers
- Plastic end caps for sealing pipe terminations
- Also under 3917.40
- Schedule 40 PVC coupling
- SharkBite PEX fittings
- John Guest push-fit connectors
- plastic garden hose quick connectors
- CPVC solvent weld fittings
Codes often confused with 3917.40
Common mistake. A common error is classifying plastic valves under 3917.40. Valves, even if made of plastic and used in piping, must be classified under HS code 8481.80. Furthermore, fittings made of reinforced plastic or those combined with metal threads are sometimes incorrectly placed in Chapter 73 (iron or steel) if the metal component is deemed to provide the essential character, though most plastic-bodied fittings remain in 3917.40.
Top exporters and importers of HS 391740 (the code used for plastic pipe fitting), 2025
In 2025, the largest exporter of HS 391740 (the code used for plastic pipe fitting) in UN Comtrade data was Germany, with 18% of world exports; the largest importer in UN Comtrade data was Germany, with 9.8% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 391740, not only plastic pipe fitting.
Top exporters 2025 · share of world exports
- 1 Germany $1.5B 18% of world exports
- 2 United States $1.1B 13% of world exports
- 3 China $1.1B 13% of world exports
World total: $8.5B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $869M 9.8% of world imports
- 2 United States $689M 7.8% of world imports
- 3 Mexico $596M 6.7% of world imports
World total: $8.9B 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 that did not report are estimated from what other countries recorded trading with them. 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 plastic pipe fitting
Brazil splits HS 3917.40 into 2 NCM codes. Pick the one that matches your product:
- 3917.40.10Plastic fittings for haemodialysis blood lines
- 3917.40.90Other plastic tube, pipe and hose fittings
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about plastic pipe fitting
What is the HS code for Plastic pipe fitting?
The HS code for Plastic pipe fitting is 391740 (Plastics; tube, pipe and hose fittings (e.g. joints, elbows, flanges)). The standard international HS code for plastic pipe, tube, and hose fittings is 3917.40.
How do I classify Plastic pipe fitting for customs?
Plastic pipe fitting is classified under HS code 391740 — Plastics; tube, pipe and hose fittings (e.g. joints, elbows, flanges). This is a 6-digit subheading level code.
Are plastic garden hose nozzles classified here?
No, garden hose nozzles with mechanical spray mechanisms are generally classified under HS code 8424.89 as mechanical appliances for projecting liquids.
Which countries are the top exporters of plastic pipe fitting (HS 391740)?
In 2025, the top exporters of HS 391740 (the code used for plastic pipe fitting) in UN Comtrade data were Germany ($1.5B, 18% of world exports), the United States ($1.1B) and China ($1.1B). World exports came to about $8.5B, 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 plastic pipe fitting (HS 391740)?
In 2025, the top importers of HS 391740 (the code used for plastic pipe fitting) in UN Comtrade data were Germany ($869M, 9.8% of world imports), the United States ($689M) and Mexico ($596M). World imports came to about $8.9B, 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.
Is the HS code for Plastic pipe fitting the same in all countries?
The base HS code 391740 for Plastic pipe fitting is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for plastic pipe fitting in Brazil?
Brazil splits HS 391740 into 2 NCM codes, so the right one for plastic pipe fitting depends on the product's details: 3917.40.10 (Plastic fittings for haemodialysis blood lines), 3917.40.90 (Other plastic tube, pipe and hose fittings).