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HSChapter 39
U.S. imports of plastic fittings for tubes, pipes & hoses (HS 391740) totaled $59.7M in June 2026, traded with 73 countries.
Importers of Plastic Fittings for Tubes, Pipes & Hoses paid $7.7M in duties in June 2026 — an effective duty rate of 18% on $43.0M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Plastic pipe fittings — couplings, elbows, tees, adapters, and similar connectors — are widely traded components for plumbing, automotive brake systems, and industrial fluid networks, with the US schedule subdividing them across eight 10-digit lines by application and resin type. Dedicated lines cover vehicle brake-hose fittings (3917400010), non-pressure-rated plumbing fittings in PVC (3917400020), ABS (3917400030), and other plastics (3917400050), pressure-rated plumbing fittings in PVC (3917400060) and other materials (3917400080), and a general residual line (3917400095). Canada and Mexico lead US supply, with China also a major source where Section 301 tariffs may apply. The breadth of end-use applications — from residential plumbing to automotive safety systems — means that product-specific standards (ASTM, SAE, NSF) often govern admissibility at the project or OEM level even after customs clearance.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The US schedule provides a dedicated 10-digit line (3917400010) for fittings for vehicle brake hoses, which takes precedence over the general plumbing-fitting lines. Importers should retain technical documentation from the manufacturer confirming the fitting's intended use in brake-hose assemblies. Misclassifying brake-hose fittings as general plumbing fittings can result in underpayment of duties if the applicable rates differ.
Non-pressure-rated plumbing fittings (lines 3917400020, 3917400030, 3917400050) are designed for drain, waste, and vent (DWV) applications where the pipe operates at or near atmospheric pressure. Pressure-rated fittings (lines 3917400060 and 3917400080) are engineered to withstand internal fluid pressure and are used in supply-side plumbing. The distinction is typically established by the applicable ASTM standard marked on the fitting — for example, ASTM D2665 for DWV versus ASTM D2466 for pressure service — and should be documented at entry.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | $7.5M | $28.3M | +$20.8M |
| CANADA | $9.4M | $19.2M | +$9.8M |
| UNITED KINGDOM | $5.8M | $4.4M | -$1.4M |
| CHINA | $5.8M | $2.9M | -$2.9M |
| ITALY | $5.1M | $647K | -$4.5M |
FITTINGS FOR TUBES,PIPES & HOSES,OF PLASTIC
HS 3917400000
OTHER FITTINGS FOR TUBES,PIPES & HOSES,OF PLASTIC
HS 3917400095
OTH PLUMBING FITTINGS FOR TUBES,PIPES & HOSES,NES
HS 3917400080
PLMBNG FTNG TUBE,PIPE,HOSE,OF PLAST,NT PR RTD,PVC
HS 3917400020
PLMBNG FTNG TUBES,PIPES,HOSES,PLAST,NT PRRTD,NES
HS 3917400050
Monthly import values over time
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 3917400095 | OTHER FITTINGS FOR TUBES,PIPES & HOSES,OF PLASTIC | $44.1M | 13.85% | 79.54% | $6.1M |
| 3917400080 | OTH PLUMBING FITTINGS FOR TUBES,PIPES & HOSES,NES | $4.9M | 11.82% | 63.63% | $580K |
| 3917400020 | PLMBNG FTNG TUBE,PIPE,HOSE,OF PLAST,NT PR RTD,PVC | $4.4M | 7.80% | 37.66% | $346K |
| 3917400050 | PLMBNG FTNG TUBES,PIPES,HOSES,PLAST,NT PRRTD,NES | $2.6M | 7.31% | 43.19% | $190K |
| 3917400060 | OTH PLUMBING FITTINGS TUBES,PIPES HOSES,POLYV CHL | $2.3M | 16.05% | 66.46% | $373K |
| 3917400030 | PLUMBING FTNG TUBE,PIPE,HOSES,PLAS,NT PRES RTD,ABS | $1.2M | 9.43% | 31.45% | $109K |
| 3917400010 | FITTINGS FOR VEHICLE BRAKE HOSES | $159K | 11.18% | 44.73% | $18K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3917400000 | FITTINGS FOR TUBES,PIPES & HOSES,OF PLASTIC | $88.5M |
ETHYLENE-ALPHA-OLEFIN COPOLY, SPC GRAVITY <0.94
HS 390140
| State | Imports | Exports | Balance |
|---|---|---|---|
| California | $7.8M | $7.0M | -$883K |
| Texas | $4.5M | $9.5M | +$5.0M |
| Minnesota | $804K | $13.1M | +$12.3M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | $2.2M | $10.3M | +$8.1M |
| OTAY MESA, CA | $4.2M | $6.1M | +$1.9M |
| LOW VALUE | -- | $9.1M | +$9.1M |