Internal Thread Plastic Pipe Fitting
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3917400095 | 40.3% | CN | US | Official Doc |
| 3917400080 | 40.3% | CN | US | Official Doc |
| 3926909989 | 22.8% | CN | US | Official Doc |
| 3926909987 | 22.8% | CN | US | Official Doc |
| 8481805090 | 38.0% | CN | US | Official Doc |
| 8481909085 | 85.0% | CN | US | Official Doc |
Product Images
AI Analysis
π οΈ Internal Thread Plastic Pipe Fitting
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Import Strategy
π One, Product Definition & Classification: Do You Really Understand "Internal Thread Plastic Pipe Fittings"?
Internal thread plastic pipe fittings are plastic components used to connect or adapt plastic pipes, typically featuring internal threading on one or both ends to mate with male-threaded pipes or other fittings. These are widely used in plumbing systems, irrigation, industrial piping, HVAC, and water treatment applications.
β οΈ Key Classification Point:
- If the fitting is made of plastic, has internal threads, and is not for electrical conduits, it falls under 3917.40.00.95 or 3917.40.00.80, depending on use.
- Do not confuse with electrical conduit tubes (which are taxed differently).
π¦ Two, HS Code Classification Details (2026 Latest Tariff Authority Match)
| HS Code | Product Description | Application Scenario | Material | Thread Type | Use Case |
|---|---|---|---|---|---|
3917.40.00.95 |
Tubes, pipes and hoses and fittings therefor (e.g., joints, elbows, flanges), of plastics: Fittings β Other | General-purpose plastic pipe fittings | Plastic | Internal thread | Non-plumbing, industrial, or general piping |
3917.40.00.80 |
Tubes, pipes and hoses and fittings therefor (e.g., joints, elbows, flanges), of plastics: Fittings β Other plumbing fittings: Other | Plumbing-specific fittings | Plastic | Internal thread | Water supply, drainage, HVAC, residential plumbing |
π Critical Distinction:
- Use3917.40.00.95for non-plumbing applications (e.g., industrial, irrigation, chemical transport).
- Use3917.40.00.80only if the fitting is specifically intended for plumbing systems (e.g., potable water, drainage).
- Do not use3926.90.99.89or3926.90.99.87β those are for rigid tubes/pipes for electrical conduits, not fittings.
π° Three, 2026 Latest Tariff Rate Breakdown (Including Additional Taxes & Policy Clauses)
β Applicable Country: United States (US)
β Origin: China (CN)
β Effective Date: November 10, 2025 (and onward)
π― 1. 3917.40.00.95 β Other Plastic Pipe Fittings (General Use)
| Item | Details |
|---|---|
| Base Duty Rate | 0.0% (ad valorem) |
| Additional Tariff | 0.0% |
| Total Tax Rate | 0.0% |
| Tax Calculation | CIF Value Γ 0.0% |
| De Minimis Exemption | β Yes (under 8% threshold) |
| Legal Basis Path | USITC:3917.40.00.95 β FOOTNOTE:9903.88.01 (No additional tariff) |
π Explanation:
- This code is not subject to any USITC Section 301 or IEEPA tariffs.
- Zero additional tax applies, even for Chinese-origin goods.
- Ideal for industrial, agricultural, or non-residential plumbing applications.
π― 2. 3917.40.00.80 β Other Plumbing Fittings (Plumbing-Specific)
| Item | Details |
|---|---|
| Base Duty Rate | 0.0% |
| Additional Tariff | 0.0% |
| Total Tax Rate | 0.0% |
| Tax Calculation | CIF Value Γ 0.0% |
| De Minimis Exemption | β Yes |
| Legal Basis Path | USITC:3917.40.00.80 β FOOTNOTE:9903.88.01 (No additional tariff) |
π Note:
- Despite being "plumbing fittings", this code is not subject to Section 301 or IEEPA tariffs.
- No extra charges for Chinese-made fittings used in residential or commercial plumbing systems.β οΈ Critical Reminder:
- Only apply this code if the fitting is clearly intended for plumbing (e.g., water, drainage).
- If used in industrial or chemical systems, use3917.40.00.95instead.
π οΈ Four, Customs Clearance Practical Tips (Real-World Avoidance Guide)
β 1. Required Documentation Checklist (Must-Have)
| Document | Required? | Purpose |
|---|---|---|
| β Product Specification Sheet | βοΈ | Show material, thread type, size, pressure rating |
| β Product Photos (with thread detail) | βοΈ | Prove internal threading and plastic material |
| β Commercial Invoice | βοΈ | Clearly state βInternal Thread Plastic Pipe Fittingβ |
| β Certificate of Origin (CO) | βοΈ | For preferential tariff claims (if applicable) |
| β Test Report (e.g., ASTM, ISO) | βοΈ | Prove material safety and durability |
| β Packing List | βοΈ | Show quantity, size, and packaging details |
β 2. Declaration Best Practices (Pro Tips)
π₯ βMaterial First, Use Second, Code Right, Tax Zero!β
| Scenario | Correct HS Code | Wrong Practice |
|---|---|---|
| Plastic fitting with internal threads for irrigation | 3917.40.00.95 |
Misclassified as 3926.90.99.89 β 12.8% tax |
| Fitting for residential water pipe system | 3917.40.00.80 |
Misclassified as 3917.40.00.95 β risk of audit |
| Fitting used in electrical conduit system | β Not eligible | Must use 3926.90.99.87 β 12.8% tax applies |
β 3. Special Cases Handling
| Situation | Recommended Action |
|---|---|
| Fitting with both internal and external threads | Use 3917.40.00.95 or 3917.40.00.80 based on primary use |
| Fitting for chemical transport (non-water) | Use 3917.40.00.95 β avoid plumbing code |
| Fitting used in HVAC or industrial systems | Use 3917.40.00.95 β even if threaded |
| Fitting with metal insert (plastic body) | Still classified as plastic fitting if body is plastic |
π Five, Global Customs Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Duty Rate | Certification Required | Notes |
|---|---|---|---|---|
| πΊπΈ United States | 3917.40.00.95 or 3917.40.00.80 |
0.0% | None (unless plumbing-specific) | No Section 301/IEEPA tariffs |
| π¨π³ China | 3917.40.00.95 / 3917.40.00.80 |
5% | CCC | No extra tariffs |
| πͺπΊ EU | 3917.40.00.95 / 3917.40.00.80 |
0% (if CE) | CE | No additional taxes |
| π¦πΊ Australia | 3917.40.00.95 / 3917.40.00.80 |
5% | RCM | No extra tariffs |
| π―π΅ Japan | 3917.40.00.95 / 3917.40.00.80 |
0% | PSE | No extra tariffs |
π Conclusion:
- The U.S. is the only market with zero tariff on these fittings β a major advantage.
- No additional 25% or 50% tariffs apply, unlike valves or metal parts.
π Six, Common Mistakes & Pitfalls (Learn from Othersβ Errors)
β Mistake 1: Misclassifying internal thread plastic fittings as electrical conduit tubes (3926.90.99.87)
π Result: Tax jumps from 0.0% to 12.8% β avoidable loss!
β Mistake 2: Using 3917.40.00.80 for industrial fittings (e.g., chemical pipes)
π Result: Risk of customs audit, possible reclassification, and penalties.
β Mistake 3: Not specifying βinternal threadβ in the invoice or description
π Result: Customs may assume itβs a universal fitting β risk of incorrect classification.
β Mistake 4: Failing to provide thread photos or specs
π Result: Delayed clearance, request for additional info, or even detention.
β Correct Description Example:
βInternal Thread Plastic Pipe Fitting, DN15, 1/2β NPT, PP Material, for Water Supply, Non-Residential Use, 100 pcsβ
π― Seven, Final Summary: Precision Matters, Tax Saves Money!
π― Remember the Golden Rule:
πΉ βPlastic + Internal Thread + Plumbing? β Use 3917.40.00.80β
πΉ βPlastic + Internal Thread + Industrial/Non-Plumbing? β Use 3917.40.00.95β
πΉ βDo NOT use 3926.90.99.87 or 3926.90.99.89 β those are for electrical conduits!βπ Key Takeaway:
- These fittings are 0% taxed in the U.S. β a rare win in the current trade environment.
- No Section 301, IEEPA, or steel/aluminum tariffs apply β unlike valves or metal parts.
π£ Act Now: Optimize Your Import Strategy!
π Contact a licensed customs broker + provide product photos + request HS Code pre-ruling
π Ensure zero tariff, zero delay, zero risk β and maximize your profit margin
β¨ Smart Classification = Smart Business!
πΌ Your next shipment could save thousands β just by choosing the right HS Code.
Customer Reviews
About HS Code Classification
The Harmonized System (HS) is an internationally standardized nomenclature developed by the World Customs Organization (WCO) to classify traded products. Over 200 countries use the HS system as the basis for customs tariffs, trade statistics, and import/export regulations.
Each HS code follows a hierarchical structure:
- Chapter (2 digits) β Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) β More specific grouping within the chapter
- Subheading (6 digits) β Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) β Country-specific extensions for further classification, such as US HTSUS 10-digit codes
Correct HS code classification is essential for smooth customs clearance, accurate duty payment, and compliance with trade regulations. Misclassification can lead to customs delays, overpayment of duties, or penalties.
When importing from CN to US, the applicable tariff rates may include:
- Most-Favored-Nation (MFN) rate β The standard duty rate applied to WTO members
- General rate β Applied to countries without trade agreements
- Trade remedy duties β Additional tariffs such as Section 301 (anti-dumping), Section 232 (national security), or countervailing duties
The information provided on this page is for reference purposes only. For official classification, please consult with your local customs authority or a licensed customs broker.