水基灭火剂密封件
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 8414909180 | 35.0% | CN | US | Official Doc |
| 3926904510 | 38.5% | CN | US | Official Doc |
| 4016931020 | 37.5% | CN | US | Official Doc |
| 8414909140 | 35.0% | CN | US | Official Doc |
AI Analysis
🧯 Fire Extinguishing Agent Seals (Water-Based)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition & Classification: What are "Fire Extinguishing Agent Seals"?
These seals are specialized gaskets, O-rings, or grommets used specifically in fire suppression systems involving water-based agents (such as foam, water mist, or aqueous film-forming foam). Their primary function is to ensure leak-proof integrity in pipes, valves, and tanks.
Key Classification Logic: Since the specific material composition (rubber vs. plastic) is not explicitly stated in the prompt "Water-based Fire Extinguishing Agent Seals," customs classification relies on two main pathways: 1. By Material (Rubber): Inferred as sulfided rubber due to common industrial standards for flexibility and sealing. 2. By Material (Plastic): Inferred as a chemically resistant plastic polymer due to the "specialized for extinguishing agents" application. 3. By Use (Component): Classified as a spare part/component for fire-fighting machinery.
⚠️ Critical Distinction:
- If the seal is made of Rubber → It falls under Chapter 40.
- If the seal is made of Plastic → It falls under Chapter 39.
- If classified as a Spare Part for specific machinery → It may fall under Chapter 84.
- Note: The "Fire Extinguishing" aspect defines the use, but HS codes primarily classify by material or function within a machine. The specific machine code (8414) relates to pumps/vacuums, implying the seal is used in pumping systems for these agents.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
Based on the provided data, here are the five most likely HS Codes with their corresponding tax structures. All scenarios assume Import from China to the US under current trade policies (Section 301 + IEEPA).
| HS Code | Product Description | Matching Logic & Rationale | Total Tax Rate |
|---|---|---|---|
| 4016.93.10.20 | Rubber Seals | Logic: Classified as "Other articles of vulcanized rubber." Although material isn't explicitly stated, "seals" are commonly rubber. This code matches the "sealed component" form. | 37.5% |
| 3926.90.45.10 | Plastic Seals (Specific) | Logic: Classified as "Other articles of plastics." Matches the use "seals/gaskets." Inferred as plastic due to chemical resistance needs for extinguishing agents. | 38.5% |
| 3926.90.45.90 | Plastic Seals (Other) | Logic: Similar to above but for "other" plastic seals not specifically listed in .45.10. Matches "seal" function and inferred plastic/rubber compatibility. | 38.5% |
| 8414.90.91.80 | Spare Parts (Other) | Logic: Classified as "Parts of air pumps or vacuum pumps." Seals are critical components. No material conflict with "Other parts." | 35.0% |
| 8414.90.91.40 | Vacuum Pump Parts | Logic: Specifically for "vacuum pump parts." If the fire suppression system uses vacuum-assisted pump mechanisms, this part logic applies. | 35.0% |
🔍 Key Insight:
- Rubber (4016) offers a slightly lower tax rate (37.5%) compared to Plastic (3926, 38.5%).
- Parts (8414) offer the lowest base tax rate (35.0%), but this depends heavily on whether the seal is strictly interpreted as a "pump part" rather than a general "gasket."
- Warning: Misdeclaring a plastic seal as rubber (or vice versa) can lead to customs audits and penalties.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surcharges & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: Post-November 2025 (Current Trade Policies)
🎯 1. 4016.93.10.20 — Rubber Seals (Vulcanized Rubber Articles)
| Item | Details |
|---|---|
| Base Tariff | 2.5% (Standard MFN Rate) |
| Section 301 Surtax | +25.0% (USITC Footnote related to Chinese goods) |
| IEEPA Surtax | +10.0% (122 Provision: Additional tariffs on Chinese imports) |
| Total Tax Rate | 37.5% |
| Tax Calculation | CIF Value × 37.5% |
| De Minimis Exemption? | ❌ NO (Denied under current rules for Chinese goods) |
| Legal Basis Path | USITC:4016.93.10.20 → SECTION_301 → IEEPA:122 |
📌 Explanation:
- The 2.5% is the standard duty for rubber articles.
- The 25% is the legacy Section 301 tariff.
- The 10% is the additional IEEPA tariff targeting specific Chinese categories.
- Total: 37.5%. This is a high tariff tier.
🎯 2. 3926.90.45.10 & 3926.90.45.90 — Plastic Seals (Other Plastic Articles)
| Item | Details |
|---|---|
| Base Tariff | 3.5% (Standard MFN Rate for Plastic Articles) |
| Section 301 Surtax | +25.0% |
| IEEPA Surtax | +10.0% |
| Total Tax Rate | 38.5% |
| Tax Calculation | CIF Value × 38.5% |
| De Minimis Exemption? | ❌ NO |
| Legal Basis Path | USITC:3926.90.45.xx → SECTION_301 → IEEPA:122 |
📌 Note:
- Plastic seals are taxed slightly higher (38.5%) than rubber seals (37.5%) due to a higher base tariff (3.5% vs 2.5%).
- If you can confirm the material is rubber, choose 4016.93.10.20 to save 1.0% on the total tax burden.
🎯 3. 8414.90.91.80 & 8414.90.91.40 — Spare Parts (Air/Vacuum Pumps)
| Item | Details |
|---|---|
| Base Tariff | 0.0% (Free for certain pump parts) |
| Section 301 Surtax | +25.0% |
| IEEPA Surtax | +10.0% |
| Total Tax Rate | 35.0% |
| Tax Calculation | CIF Value × 35.0% |
| De Minimis Exemption? | ❌ NO |
| Legal Basis Path | USITC:8414.90.91.xx → SECTION_301 → IEEPA:122 |
📌 Explanation:
- This is the lowest tariff option (35.0%).
- Condition: The seal must be demonstrably a part of an air pump or vacuum pump used in the fire suppression system.
- Risk: If the seal is a general-purpose gasket not specific to pumps, customs may reject this code and reclassify it to Chapter 40 or 39, resulting in back taxes and penalties.
- Strategy: Only use this if the seals are sold specifically as "pump seals" or are integral to pump assembly.
🛠️ IV. Customs Clearance Practical Advice (Battle-Tested Pitfall Guide)
✅ 1. Documentation Checklist (Non-Negotiable)
| Document | Required | Purpose |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must explicitly state Material (Rubber vs. Plastic) and Hardness/Grade. |
| ✅ Commercial Invoice | ✔️ | Description: "Rubber Seal for Fire Extinguishing Pump" or "Plastic Gasket for Foam System". Avoid vague terms like "Accessory." |
| ✅ Material Safety Data Sheet (MSDS) | ✔️ | To prove chemical resistance (confirms "extinguishing agent" compatibility). |
| ✅ Part Number & Cross-Reference | ✔️ | Link to OEM part numbers for pumps (if using HS 8414). |
| ✅ Photos of Product | ✔️ | Show texture, color, and any markings (e.g., "NBR", "EPDM", "PTFE") to prove material. |
| ✅ Origin Certificate | ✔️ | Mandatory for US Customs to apply correct surcharges. |
✅ 2. Declaration Strategy (Key Mantras)
🔥 “Material Defines Code, Use Supports Logic, Pumps Lower Rates!”
| Scenario | Correct Declaration | Error to Avoid |
|---|---|---|
| Rubber Seal | 4016.93.10.20"Vulcanized Rubber Seal, NBR/EPDM" |
Misdeclaring as Plastic → 38.5% (Higher) |
| Plastic Seal | 3926.90.45.10"Plastic Gasket, Chemical Resistant" |
Misdeclaring as Rubber → 37.5% (Lower, but audit risk) |
| Pump Specific Seal | 8414.90.91.80"Spare Part for Air Pump" |
Generic "Seal" description → Rejected for 8414 |
| Generic Gasket | 4016.93.10.20 or 3926.90.45.90 |
Forcing 8414 without pump proof → Penalty |
✅ 3. Special Case Handling
| Situation | Recommendation |
|---|---|
| Mixed Material (Rubber Core + Plastic Cover) | Declare based on essential character (usually the core material). Provide technical diagrams. |
| Custom/Molded Seals | Provide mold designs to prove they are not off-the-shelf standard parts, supporting specific HS codes. |
| High-Value Batch | Apply for CBP Ruling (Pre-Ruling) to lock in the HS code and tariff rate (35% vs 38.5%) before shipment. |
| Fire Safety Compliance | Ensure seals meet UL/FM standards for fire equipment. Customs may inspect for safety compliance even if duties are paid. |
🌍 V. Global Customs Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Estimated Total Tax | Certification Req. | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 4016.93.10.20 (Rubber) |
37.5% | None (General) | Highest base tax for rubber. Cheapest: 8414 (35%) if pump part. |
| 🇨🇳 China | 4016.93.90.90 |
8% | None | No surcharges. Import-friendly. |
| 🇪🇺 EU | 4016.93.90 |
0-3% | CE (if part of machine) | Low duties, but strict REACH compliance for chemicals. |
| 🇯🇵 Japan | 4016.93.90.00 |
3-5% | JIS Standard | Moderate duties. Requires clear material specification. |
| 🇬🇧 UK | 4016.93.90 |
0-3% | UKCA | Post-Brexit rules apply. Generally low tariffs. |
📌 Conclusion:
- The US is the most expensive market due to Section 301 + IEEPA surcharges.
- China, EU, and Japan are significantly cheaper.
- In the US, strategic classification as a "Pump Part" (8414) saves 2.5% - 3.5% compared to material-based codes.
📌 VI. Common Errors & Pitfall Guide (Lessons Learned)
❌ Error 1: Vague Description "Fire Extinguisher Parts"
👉 Consequence: Customs cannot determine material → Assigns highest possible duty or flags for inspection → Delay.
❌ Error 2: Using HS 8414 for General Gaskets
👉 Consequence: If seals are not for pumps, CBP will reclassify to Ch. 40/39 → Back taxes + Interest.
❌ Error 3: Misstating Material (Rubber vs. Plastic)
👉 Consequence: Discrepancy between invoice and physical inspection → Seizure or Fine.
❌ Error 4: Ignoring IEEPA 122 Tariff
👉 Consequence: Underpaying by 10% → Penalties + Audit Trigger.
✅ Correct Approach:
"EPDM Rubber Seal, Model XYZ, for Fire Pump System, Compliant with UL 199, Origin: China"
🎯 VII. Conclusion: Professional Classification, Cost Optimization
🎯 Remember the Mantra:
🔹 “Check Material First, Then Use, Then Part.”
🔹 “Rubber 37.5%, Plastic 38.5%, Pump Part 35.0%.”
🔹 “In the US, 3.5% difference is pure profit!”
📌 Pro Tip:
If your seals are highly specialized for fire suppression, provide technical datasheets highlighting their resistance to foam/water agents. This supports the "specialized use" argument for 8414 if they are indeed part of the pumping mechanism.
For high-volume shipments, always apply for a CBP Advance Ruling to secure the 35% rate if applicable.
📣 Immediate Action:
📞 Consult a licensed customs broker + Provide Material Spec Sheet + Apply for Pre-Ruling
🚀 Clear your fire safety supplies efficiently, avoid delays, and protect your margins!
✨ Professional Customs Clearance Starts with Precise Classification!
💼 Every Percent Saved is Revenue Gained!
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) — Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) — More specific grouping within the chapter
- Subheading (6 digits) — Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) — 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 — The standard duty rate applied to WTO members
- General rate — Applied to countries without trade agreements
- Trade remedy duties — 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.