HS 848420 Mechanical seals
Quick Answer: Mechanical seals imported under HS 848420 enter the UK duty-free, the EU at 1.70% ad valorem, and the US at 3.9% ad valorem (MFN). This code covers devices designed to prevent leakage between a rotating shaft and a stationary housing, commonly found in pumps, compressors, and engines. Key trade considerations include the varying MFN rates between major markets, with the US having a significantly higher standard rate. Importers should verify specific preferential rates applicable to their origin country. CustomTariffs aggregates this data, highlighting the importance of precise classification for accurate duty assessment.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 8484200000 | 0.00 % | — | — |
| 8484200010 | 0.00 % | — | — |
| 8484200090 | 0.00 % | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 8484200000 | 1.70 % | — | — |
| 8484200010 | 1.70 % | — | — |
| 8484200090 | 1.70 % | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 8484200000 | 3.9% | Free (18 programs) | ["No."] |
Special rates available under trade agreements including USMCA, KORUS, GSP.
Duty rates sourced from the USITC (US International Trade Commission) Harmonized Tariff Schedule (HTS) (accessed 2/22/2026), EU TARIC – DG TAXUD (Directorate-General for Taxation and Customs Union) (accessed 2/22/2026), and UK Trade Tariff – HMRC (His Majesty's Revenue and Customs) (accessed 2/22/2026).
Data compiled and presented by HSRates.
Which Trade Agreements Reduce Duties for HS 8484.20?
Imports of Mechanical seals may qualify for reduced or zero duty rates under free trade agreements and preferential programs. The overview below shows available preferential arrangements by jurisdiction, compiled by HSRates from official tariff and trade agreement data.
United States (HTSUS)
Free for USMCA, KORUS, GSP, and 15 other programs
European Union (TARIC)
Preferential rate data not yet available.
United Kingdom
Preferential rate data not yet available.
Preferential rates require proof of origin and may be subject to quotas or conditions. Always verify eligibility with a licensed customs broker.
Data compiled by HSRates.
Which Preferential Rates Apply to Your Origin Country?
Select an origin country to see if preferential rates apply.
Preferential rates based on available trade agreements. Actual rates may vary.
How Has Trade Volume Developed?
Trade Volume 2023
How to Classify This HS Code?
What products does HS 848420 cover?
This subheading covers mechanical seals, which are devices designed to prevent leakage between a rotating shaft and a stationary housing. According to the World Customs Organization (WCO) Harmonized System Explanatory Notes, these seals are typically composed of two main parts: a rotating ring and a stationary ring, often made of materials like carbon, ceramic, or metal, with elastomeric components for sealing. The USITC Harmonized Tariff Schedule (HTS) and the EU TARIC database confirm this classification for specialized sealing components used in pumps, compressors, and other rotating machinery.
What falls outside HS 848420?
The following products are excluded from HS 848420: simple rubber or felt seals, O-rings not specifically designed as mechanical seals, and gaskets (which are static seals). For instance, a simple rubber washer used to seal a pipe joint would typically be classified under Chapter 40 (Plastics and Rubber) or Chapter 39 (Plastics), and a composite gasket for an engine block would fall under HS 8484.10. These exclusions are based on the functional distinction between dynamic mechanical seals and static sealing elements.
What are common classification mistakes for HS 848420?
A common error is misclassifying components of mechanical seals as separate parts or classifying complete assemblies that include more than just the sealing mechanism. For example, a pump assembly that *contains* a mechanical seal but is primarily a pump would be classified under its respective pump heading (e.g., 8413). This mistake often arises from not adhering to General Rule of Interpretation (GRI) 3(b) of the Harmonized System, which dictates classification by the essential character of the goods when they are presented in sets.
How should importers classify products under HS 848420?
The correct procedure for classifying products under HS 848420 involves a thorough examination of the product's function and composition. Importers and customs brokers should consult the official WCO HS Nomenclature, the USITC HTS, or the EU TARIC database. Key considerations include whether the product is a dynamic seal designed to prevent leakage between rotating and stationary parts, and if it comprises the essential components of a mechanical seal as described in the Explanatory Notes. Verification against product literature and supplier declarations is crucial.
How is the duty calculated for products under HS 848420?
A specific mechanical seal for a centrifugal pump, weighing 0.5 kg and declared at a customs value of $150 USD, would attract a US duty of $10.50. This is calculated using the Most Favored Nation (MFN) duty rate of 7.0% ad valorem published in the USITC Harmonized Tariff Schedule (HTS) for HS 8484.20. The calculation is: 7.0% × $150 USD = $10.50 USD. This rate applies to imports from countries not benefiting from preferential trade agreements.
Which trade agreements reduce duties for HS 848420?
Several free trade agreements may reduce the applicable duty rate for HS 848420, including the United States-Mexico-Canada Agreement (USMCA), which can result in a duty rate of Free for qualifying goods originating from Canada or Mexico. The Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP) also offers preferential rates, potentially Free, for eligible goods from member countries like Vietnam. Documentation required typically includes a self-certified origin statement for USMCA or a specific origin declaration for CPTPP, depending on the specific provisions and the importing country's requirements.
```Which HS Codes Are Related?
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FAQ
What are the typical import duty rates for HS code 848420 (Mechanical seals)?
The Most Favored Nation (MFN) duty rate for HS code 848420, covering mechanical seals, is generally 3.9% ad valorem in the United States. However, preferential duty rates apply under various trade agreements. For example, under the USMCA (United States-Mexico-Canada Agreement), the rate is often Free (0.00%). It is crucial to consult the specific trade agreement and the Harmonized Tariff Schedule of the United States (HTSUS) for the most accurate and up-to-date rates applicable to your country of origin.
How are mechanical seals classified under HS code 848420?
HS code 848420 specifically covers 'Mechanical seals'. Classification hinges on the product's primary function and construction. Mechanical seals are devices used to prevent leakage between a rotating shaft and a stationary housing, commonly found in pumps, compressors, and other rotating equipment. They typically consist of a rotating ring and a stationary ring that are pressed together by a spring mechanism, forming a seal. Products that do not meet this definition, such as simple O-rings or gaskets, would be classified under different HS codes.
What documentation is typically required for importing mechanical seals under HS code 848420?
Standard import documentation for mechanical seals under HS code 848420 generally includes a commercial invoice, packing list, and bill of lading or air waybill. Depending on the country of origin and any applicable trade agreements, a Certificate of Origin may be required to claim preferential duty rates. Importers should also be prepared to provide product specifications or technical data sheets to customs authorities if requested to verify classification. Compliance with any specific import regulations or standards of the importing country is also essential.
How is the import duty for mechanical seals calculated using an example?
The import duty for mechanical seals under HS code 848420 is typically calculated on an ad valorem basis, meaning it's a percentage of the declared customs value of the goods. For instance, if the MFN duty rate is 3.9% and you import mechanical seals with a declared customs value of $10,000, the duty amount would be calculated as: $10,000 (Customs Value) × 3.9% (Duty Rate) = $390. If a specific duty rate based on quantity (e.g., per unit) also applies, both would need to be considered, and the higher amount typically prevails.
Which trade agreements commonly offer preferential duty rates for mechanical seals (HS 848420)?
Several trade agreements can provide preferential duty rates for mechanical seals classified under HS code 848420. For imports into the United States, the USMCA (United States-Mexico-Canada Agreement) often results in a 0.00% duty rate for goods originating from Canada or Mexico. Other agreements, such as those with Australia, South Korea, or various free trade agreements with countries in Central and South America, may also offer reduced or free entry. It is imperative for importers to verify the specific rules of origin and the preferential tariff treatment available under the relevant trade agreement for their particular shipment.