HS 842390 Weighing machine weights of all kinds; parts of weighing machinery

Quick Answer: Weighing machine weights and parts of weighing machinery imported under HS 842390 enter the UK at 0.00%, the EU at 0.00% or 1.70% ad valorem, and the US at Free, 2.8% or 45% ad valorem. This classification covers all types of calibration weights used for weighing instruments, as well as components such as load cells, displays, and housings that are specifically designed for weighing machinery. Importers should carefully examine the specific nature of the parts to ensure correct classification, as some components may have different duty rates. According to CustomTariffs data, the duty rates can vary significantly by jurisdiction, necessitating careful planning for international shipments.

What Are the Import Duty Rates?

🇬🇧 United Kingdom

Code MFN Preferential Unit
8423900000
8423901000 0.00 %
8423909000 0.00 %

🇪🇺 European Union (TARIC)

Code MFN Preferential Unit
8423900000
8423901000 0.00 %
8423909000 1.70 %

🇺🇸 United States (HTSUS)

Code MFN Preferential Unit
8423901000 Free ["kg"]
842390 []
8423909000 2.8% Free (18 programs) ["kg"]

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 8423.90?

Imports of Weighing machine weights of all kinds; parts of weighing machinery 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 to Classify This HS Code?

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What products does HS 842390 cover?

This subheading covers weighing machine weights of all kinds, as well as parts and accessories specifically designed for use with weighing machinery, as defined by the World Customs Organization's Harmonized System Nomenclature. This includes calibration weights, counterweights, and components such as load cells, indicators, and housings, provided they are not more specifically classified elsewhere. The USITC Harmonized Tariff Schedule (HTS) and the EU TARIC database provide detailed interpretations of what constitutes a part or accessory for heading 8423.

What falls outside HS 842390?

The following products are excluded from HS 842390: complete weighing machines (classified under 8423.10 through 8423.89), general-purpose tools or materials that could be used as weights but are not specifically manufactured for weighing machines, and parts of other machinery that may coincidentally be used in weighing operations but are primarily designed for a different purpose. For instance, standard metal bars or general-purpose fasteners would not fall under this code.

What are common classification mistakes for HS 842390?

A common error is misclassifying parts of weighing machinery when they are more specifically covered by another heading or subheading, or when they are considered general-purpose components. For example, a basic electronic display unit that is not exclusively designed for a weighing machine might be classified under heading 8531. Adherence to General Rule of Interpretation (GRI) 3(b) for mixtures or composite goods, and GRI 1 for the basic principles of classification, is crucial to avoid these mistakes.

How should importers classify products under HS 842390?

The correct procedure for classifying products under HS 842390 involves a thorough examination of the product's intended use and specific design. Importers and customs brokers should consult the official tariff schedules of the importing country, such as the USITC HTS or the UK Trade Tariff, and refer to explanatory notes from the WCO. If the item is a weight, confirm it is manufactured for weighing purposes; if it's a part, verify its essential character and specific function within a weighing machine.

How is the duty calculated for products under HS 842390?

A set of 1kg calibration weights made of stainless steel, declared at a customs value of $50 USD, would attract a US duty of $3.50. This is calculated using the Most Favored Nation (MFN) duty rate of 7.0% ad valorem, applied to the declared value ($50 USD × 0.07 = $3.50). This rate is published in the USITC Harmonized Tariff Schedule (HTSUS) under subheading 8423.90.0000.

Which trade agreements reduce duties for HS 842390?

Several free trade agreements may reduce the applicable duty rate for HS 842390, including the United States-Mexico-Canada Agreement (USMCA). Under USMCA, qualifying goods originating from Canada or Mexico can receive a duty rate of Free. To claim this preference, a valid USMCA certification of origin is required. Additionally, goods from countries benefiting from the Generalized System of Preferences (GSP) may also qualify for reduced or free entry into the United States, requiring a GSP Form A.

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FAQ

What are the typical import duty rates for HS code 842390, covering weighing machine weights and parts?

Import duty rates for HS code 842390 vary significantly by country. For example, under the US Harmonized Tariff Schedule, the Most Favored Nation (MFN) rate is 0.00%. In the European Union, under the TARIC system, the rate is also often 0.00% for many origins, though specific trade agreements or anti-dumping duties might apply. The UK Trade Tariff also shows a 0.00% duty rate for goods originating from most countries. However, it is crucial to verify the specific rate applicable to the importing country and the origin of the goods, as rates can differ based on trade agreements or specific national policies. Always consult the official tariff database of the importing country.

How is the import duty for HS 842390 calculated if a duty rate applies?

Import duty for HS code 842390 is typically calculated based on either an ad valorem rate (a percentage of the value of the goods) or a specific rate (a fixed amount per unit of quantity), or a combination of both. For instance, if a country imposes a 2.8% ad valorem duty on imported parts for weighing machinery valued at $10,000, the duty would be calculated as: 2.8% of $10,000 = $280. If a specific duty applied, such as $0.50 per kilogram, and 500 kg of weights were imported, the duty would be 500 kg * $0.50/kg = $250. Importers must check the specific duty calculation method in the importing country's tariff schedule.

What documentation is typically required for importing goods classified under HS 842390?

Standard import documentation for HS code 842390 generally includes a commercial invoice detailing the value and description of the goods, a packing list specifying the contents of each package, and a bill of lading or air waybill for transportation. Depending on the origin of the goods and the importing country's regulations, a Certificate of Origin may be required to claim preferential duty rates under trade agreements. For certain parts or weights, specific safety or quality certifications might be requested by customs authorities, although this is less common for standard weights and parts unless they are part of a regulated weighing instrument.

Do common trade agreements, like USMCA or EU free trade agreements, affect the duty rates for HS 842390?

Yes, common trade agreements can significantly affect duty rates for HS code 842390. For example, goods originating from countries that are signatories to the United States-Mexico-Canada Agreement (USMCA) may benefit from reduced or zero duty rates on imports into the United States, Canada, or Mexico, provided they meet the rules of origin. Similarly, goods imported into the EU from countries with preferential trade agreements with the EU may also qualify for reduced duty rates. To claim these benefits, importers must typically provide a valid Certificate of Origin and ensure the goods meet the specific origin criteria outlined in the respective trade agreement. Always verify the origin of the goods and the terms of the applicable trade agreement.

What are the classification criteria for distinguishing between finished weighing machines (HS 8423) and their parts or weights (HS 842390)?

HS code 842390 specifically covers 'Weighing machine weights of all kinds; parts of weighing machinery.' This means that individual weights (e.g., calibration weights, counterweights) and components intended for assembly into a weighing machine fall under this code. Finished weighing machines, such as scales, balances, and weighing machinery for continuous material, are classified under the broader headings of HS 8423. The key distinction lies in whether the item is a complete functional weighing instrument or a component part or a weight used with such an instrument. For example, a complete digital scale would be classified under 8423.20 (automatic scales) or 8423.82 (other weighing machinery, with a capacity exceeding 5000 t), whereas a set of calibration weights for that scale would be classified under 8423.90.