Rubber O ring
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 4016931010 | 37.5% | CN | US | Official Doc |
| 3926904510 | 38.5% | CN | US | Official Doc |
| 4016935010 | 37.5% | CN | US | Official Doc |
| 3926906090 | 39.2% | CN | US | Official Doc |
| 4016931010 | 37.5% | CN | US | Official Doc |
AI Analysis
π Rubber O-Rings (Sealing Components)
π HS Code Reference & Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
π I. Product Definition & Classification: Do You Really Know "Rubber O-Rings"?
Rubber O-rings are the unsung heroes of industrial sealing, essential for automotive, hydraulic, and mechanical systems. In international trade, they are classified based on material composition (Natural vs. Synthetic/Fluoroelastomer) and chemical structure (Vulcanized Rubber vs. Plastic/Resin categories).
1. Vulcanized Rubber O-Rings (HS Chapter 40):
Made from natural rubber or specific synthetic rubbers that have undergone vulcanization. These fall under "Other articles of vulcanized rubber."
2. Plastic/Synthetic Rubber O-Rings (HS Chapter 39):
Items classified under "Plastics and articles thereof" or specific synthetic rubber subcategories, often used in aggressive chemical environments (e.g., Fluorocarbon/FKM).
β οΈ Key Distinction Point:
- Natural Rubber / Standard Synthetic Rubber O-rings β Typically classified under 4016.93.xx.xx (Vulcanized Rubber Articles).
- Fluorocarbon (FKM/Viton) or Other Synthetic O-rings β May be classified under 3926.90.xx.xx (Plastics/Synthetic Rubber Articles) depending on specific national interpretation and material density, though often still rubber. Note: The provided data explicitly maps FKM to Chapter 39.
π¦ II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Applicable Scenario | Tax Rate Breakdown |
|---|---|---|---|
4016.93.10.10 |
Vulcanized Rubber O-Rings: Natural rubber or general synthetic rubber. Classified as vulcanized rubber articles fitting specific use/shape definitions. | Standard automotive seals, hydraulic seals, general industrial use. | Total: 37.5% β’ Base: 2.5% β’ Section 301: 25.0% β’ Section 122: 10.0% |
4016.93.50.10 |
Vulcanized Rubber O-Rings: Specific articles of vulcanized rubber fitting defined product criteria. | High-spec vulcanized rubber seals. | Total: 37.5% β’ Base: 2.5% β’ Section 301: 25.0% β’ Section 122: 10.0% |
3926.90.45.10 |
Fluorocarbon (FKM) O-Rings: Classified under Plastics/Synthetic Rubber category. Fits O-ring category. | Chemical-resistant seals, high-temp automotive/engine applications. | Total: 38.5% β’ Base: 3.5% β’ Section 301: 25.0% β’ Section 122: 10.0% |
3926.90.60.90 |
Fluorocarbon (FKM) O-Rings: Synthetic rubber/plastic category. Fits "Other mechanical seals" category. | General synthetic rubber seals not fitting other specific sub-headings. | Total: 39.2% β’ Base: 4.2% β’ Section 301: 25.0% β’ Section 122: 10.0% |
π Key Reminder:
- Vulcanized Rubber (Chapter 40) generally carries a 2.5% Base Tariff.
- Plastic/Synthetic Classifications (Chapter 39) carry higher Base Tariffs (3.5% - 4.2%).
- All listed codes attract the SAME additional tariffs: 25% (Section 301) + 10% (Section 122).
- Total Tax Burden: Ranges from 37.5% to 39.2%. There is no "free trade" advantage here; the difference lies in the Base Tariff.
π° III. 2026 Latest Tariff Rate Detailed Breakdown (Including Surcharges & Policy Add-ons)
β Applicable Country: USA (US)
β Origin: China (CN)
β Effective Time: Ongoing (Section 301 & 122 tariffs active)
π― 1. Vulcanized Rubber O-Rings (4016.93.10.10 / 4016.93.50.10)
| Item | Content |
|---|---|
| Base Tariff | 2.5% |
| Section 301 Surcharge | +25.0% (25% Ad Valorem) |
| Section 122 Surcharge | +10.0% (10% Ad Valorem) |
| Total Tax Rate | 37.5% |
| Tax Calculation | CIF Value Γ 37.5% |
| De Minimis Exemption | β NOT Eligible (Section 301 and 122 tariffs generally void the $800 de minimis exemption for Chinese goods). |
| Legal Basis Path | HTSUS:4016.93.xx.xx β USITC:301 Footnote β USTR:122 Authority |
π Explanation:
- The 2.5% is the standard Most Favored Nation (MFN) rate for vulcanized rubber articles.
- The 25% is the standard Section 301 tariff on Chinese goods.
- The 10% is the additional Section 122 tariff (often applied to specific strategic sectors or as a follow-on to previous actions).
- Total: 37.5%. This is a significant cost multiplier.
π― 2. Fluorocarbon/Synthetic O-Rings (3926.90.45.10 / 3926.90.60.90)
| Item | Content |
|---|---|
| Base Tariff | 3.5% (Code .45) or 4.2% (Code .60) |
| Section 301 Surcharge | +25.0% |
| Section 122 Surcharge | +10.0% |
| Total Tax Rate | 38.5% (for .45) or 39.2% (for .60) |
| Tax Calculation | CIF Value Γ Total Rate |
| De Minimis Exemption | β NOT Eligible |
| Legal Basis Path | HTSUS:3926.90.xx.xx β USITC:301 Footnote β USTR:122 Authority |
π Note:
- Fluorocarbon (FKM) O-rings are often classified under Chapter 39 in this specific dataset, leading to a slightly higher base rate than natural rubber.
- The additional tariffs remain constant at 35% (25% + 10%).
- Total Cost Impact: Slightly higher than natural rubber variants due to the 1%β1.7% higher base tariff.
π οΈ IV. Clearance Operational Suggestions (Practical Pitfall Avoidance)
β 1. Documentation Checklist (No Missing Items)
| Document | Required | Description |
|---|---|---|
| β Product Specification Sheet | βοΈ | Must specify material (Natural Rubber vs. FKM/FPM), hardness (Shore A), and standard (AS568, JIS, DIN). |
| β Material Composition Certificate | βοΈ | Critical for distinguishing between HS 40 (Vulcanized) and HS 39 (Plastic/Synthetic). |
| β Product Photos (Clear) | βοΈ | Show cross-section, labeling (e.g., "FKM", "Viton"), and packaging. |
| β Commercial Invoice | βοΈ | Clearly state "O-Ring, Rubber, for Automotive/Hydraulic Use". Avoid vague terms like "Seal Part". |
| β Packing List | βοΈ | Detail net/gross weight, piece count, and material type per box. |
| β Origin Declaration | βοΈ | Confirm Chinese origin to apply correct tariff codes. |
β 2. Declaration Tips (Key Mantra)
π₯ βMaterial Determines Code, Code Determines Tax!β
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Natural Rubber O-Ring | 4016.93.10.10 - "Vulcanized Rubber O-Ring, Natural Rubber" |
Misdeclare as "Plastic Seal" β Risk of penalty + wrong tax. |
| FKM/Viton O-Ring | 3926.90.45.10 - "Fluorocarbon O-Ring, Synthetic" |
Misdeclare as "Rubber" β May face classification dispute. |
| Mixed Batch | Separate HS Codes for Natural vs. Synthetic | Mixed declaration β Customs may reject and re-classify at higher rate. |
| Small Sample (De Minimis) | Still Taxable | Assuming <$800 is duty-free β Illegal under Sec 301/122. |
β 3. Special Handling
| Scenario | Handling Advice |
|---|---|
| OEM Custom O-Rings | Provide drawing with material spec. Ensure the description matches the material exactly. |
| High-Temperature Seals | If made of PTFE (Teflon), check if it falls under Chapter 39 differently. This data focuses on Rubber/FKM. |
| Bulk vs. Retail | Classification is based on material, not quantity. Bulk shipments still pay 37.5%-39.2%. |
| Pre-Arrival Ruling | Highly Recommended. Apply for an International Trade Commission (ITC) ruling to lock in the HS code before shipment. |
π V. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Requirements | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 4016.93.10.10 or 3926.90.45.10 |
37.5% - 39.2% | None specific for rubber | High Tax Burden. No de minimis. |
| π¨π³ China | 4016.93.10.10 |
~5% - 8% | GB Standards | Low tariff for export to China. |
| πͺπΊ EU | 4016.93 |
0% - 3% | REACH Compliance | Generally low tariffs. REACH registration for FKM required. |
| π―π΅ Japan | 4016.93 |
0% - 5% | JIS Standards | Low tariffs under JTEPA. |
| π²π½ Mexico | 4016.93 |
0% (under USMCA if originating) | NOM Certifications | USMCA advantage if produced in North America. |
π Conclusion:
- USA is the most expensive market for Chinese rubber O-rings due to the 37.5% - 39.2% total tariff.
- EU and Japan offer significantly lower tariff barriers.
- Consider supply chain diversification (e.g., Vietnam, Mexico) if targeting the US market to avoid Section 301/122 tariffs.
π VI. Common Mistakes & Pitfall Guide (Lessons Learned)
β Mistake 1: Assuming O-rings are "small parts" and exempt from de minimis ($800 rule).
π Consequence: Seizure or forced payment of 37.5%+ tax + storage fees. Section 301/122 explicitly excludes Chinese goods from de minimis.
β Mistake 2: Confusing "Natural Rubber" (Ch 40) with "Synthetic Rubber/Plastic" (Ch 39).
π Consequence: Base tariff differs by 1%β1.7%. More importantly, incorrect HS code can lead to misclassification audits.
β Mistake 3: Vague description "Rubber Seal".
π Consequence: Customs officer may select the highest possible duty rate or request a detailed specification, causing clearance delays.
β Correct Practice:
"O-Ring, AS568-020, Material: Fluorocarbon (FKM), Hardness: 70 Shore A, Black, HS Code: 3926.90.45.10"
π― VII. Conclusion: Professional Declaration Saves Money!
π― Remember the Mantra:
πΉ "301 and 122 apply, De Minimis is dead for CN goods!"
πΉ "Rubber is 37.5%, Plastic is 38.5%, Know your material!"
π Pro Tip:
If you are shipping to the US, calculate the landed cost carefully. A $10,000 shipment will incur $3,750 - $3,920 in duties.
Consider Advance Rulings to confirm if your specific FKM formulation can be classified under the more favorable sub-heading if possible.
π£ Immediate Action:
π Consult a licensed customs broker.
π Prepare Material Safety Data Sheets (MSDS) and Composition Certificates.
π Pre-classify, Pre-declare, and Pay the Right Tax to Avoid Seizure.
β¨ Professional Clearance Starts with Accurate Classification!
πΌ Every Percent Saved is Pure Profit!
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.