Japan HS Code

HS Code 840140: Parts of nuclear reactors (Euratom) in Japan

Q: Is HS code 840140 the same across all countries?

Yes — up to the 6-digit level, HS code 840140 is the same in every WCO member country. Beyond 6 digits, each country extends the code for national tariff and statistical use. Japan extends it under Japan HS / Statistical Code.

Q: What system does Japan use to classify HS code 840140?

Japan classifies products under the Customs Tariff Schedules of Japan (Japan HS / Statistical Code; locally 実行関税率表), which extends HS codes to 9 digits. The first 6 digits align with the WCO Harmonized System, and the rest cover national tariff and statistical needs.

Q: Where can I officially look up HS code 840140 in Japan?

The official source is https://www.customs.go.jp/english/. For faster cross-country lookups, TradeInt's HS Code Tool consolidates classifications across all major countries in one place.

What is HS Code 840140 in Japan

Under Japan's Customs Tariff Schedules of Japan (実行関税率表), HS Code 840140 is the WCO Harmonized System subheading for Parts of nuclear reactors (Euratom). This is the most detailed internationally standardized level; Japan extends classifications to 9 digits under its national tariff system. 840140 belongs to Section XVI: Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles, Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof, Heading 8401: Nuclear reactors; fuel elements (cartridges), nonirradiated, for nuclear reactors; machinery and apparatus for isotopic separation.

Explore more 2026 Latest Japan import export trade data and shipment records for HS Code Nuclear Reactor Parts on TradeInt global trade data platform

Classification Path of HS Code 840140 in Japan

Section XVI

Chapters (84-85) Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles

Chapter 84

Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

HS Code 8401

Nuclear reactors; fuel elements (cartridges), nonirradiated, for nuclear reactors; machinery and apparatus for isotopic separation

HS Code 840140

Parts of nuclear reactors (Euratom)

HS Code 840140000

Nuclear reactors; fuel elements (cartridges), non-irradiated, for nuclear reactors; machinery and apparatus for isotopic separation. > Parts of nuclear reactors 原子炉、原子炉用核燃料要素（カートリッジ式で未使用のものに限る。）及び同位体分離用機器 > －原子炉の部分品

Japan Tariff Classification: Customs Tariff Schedules of Japan (Japan HS / Statistical Code)

In Japan, HS 840140 is classified under the Customs Tariff Schedules of Japan (実行関税率表) — a 9-digit national extension of the WCO 6-digit Harmonized System.

Tariff schedule Customs Tariff Schedules of Japan (Japan HS / Statistical Code)

Local name 実行関税率表

Digits 9

Official source https://www.customs.go.jp/english/

You know what 840140 means. Now see 2026 latest real trade activity for Nuclear Reactor Parts in Japan.

Buyers, suppliers, origin and destination countries, shipment dates, and quantities direct from customs records.

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Top Trading Product of HS Code 8401

Top Japan import Product Under HS Code 8401

1 840130: Fuel elements (cartridges), nonirradiated (Euratom) $324.6M 2 840140: Parts of nuclear reactors (Euratom) $1.4M

Figures shown for 2025.

For more 2026 recent data, search for Japan import trade records

Top Japan export Product Under HS Code 8401

1 840140: Parts of nuclear reactors (Euratom) $35.1M 2 840130: Fuel elements (cartridges), nonirradiated (Euratom) $31.2M 3 840110: Nuclear reactors (Euratom) $1.5K

Figures shown for 2025.

For more 2026 recent data, search for Japan export trade records

Related HS Code to Japan Nuclear Reactor Parts (840140)

HS Code 840140000

Nuclear reactors; fuel elements (cartridges), non-irradiated, for nuclear reactors; machinery and apparatus for isotopic separation. > Parts of nuclear reactors

HS Code 840110

Nuclear reactors (Euratom)

HS Code 840120

Machinery and apparatus for isotopic separation, and parts thereof (Euratom)

HS Code 840130

Fuel elements (cartridges), nonirradiated (Euratom)

HS Code 840211

Steam or other vapour generating boilers : Watertube boilers with a steam production exceeding 45 tonnes per hour

HS Code 840212

Steam or other vapour generating boilers : Watertube boilers with a steam production not exceeding 45 tonnes per hour

HS Code 840219

Steam or other vapour generating boilers : Other vapour generating boilers, including hybrid boilers

HS Code 840220

Superheated water boilers

Frequently Asked Questions

What is HS code 840140 in Japan?

HS code 840140 covers Parts of nuclear reactors (Euratom) in Japan. It sits in Chapter 84 (Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof), Heading 8401 of the Harmonized System, and is classified under Japan HS / Statistical Code.

Is HS code 840140 the same across all countries?

What system does Japan use to classify HS code 840140?

Where can I officially look up HS code 840140 in Japan?