Heading 8483
HTS code 8483 — Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof
- Tariff lines
- 45
- General duty
- General duty rates from 2.5% to 5.7%, with 4 duty-free lines; 1 line carries a specific or compound duty
Tariff lines under heading 8483
Full 10-digit codes with their general (MFN) duty rates. The correct line depends on the product's material, construction, and use.
| HTS code | Description | General rate | Unit |
|---|---|---|---|
| 8483.10.1010 | For motorcycles (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Transmission shafts (including camshafts and crankshafts) and cranks > Camshafts and crankshafts > Designed for use solely or principally with spark-ignition internal combustion piston engines or rotary engines > For vehicles of chapter 87) | 2.5% | No., kg |
| 8483.10.1030 | Other (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Transmission shafts (including camshafts and crankshafts) and cranks > Camshafts and crankshafts > Designed for use solely or principally with spark-ignition internal combustion piston engines or rotary engines > For vehicles of chapter 87) | 2.5% | No., kg |
| 8483.10.1050 | Other (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Transmission shafts (including camshafts and crankshafts) and cranks > Camshafts and crankshafts > Designed for use solely or principally with spark-ignition internal combustion piston engines or rotary engines) | 2.5% | No., kg |
| 8483.10.3010 | For vehicles of chapter 87 (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Transmission shafts (including camshafts and crankshafts) and cranks > Camshafts and crankshafts > Other) | 2.5% | No., kg |
| 8483.10.3050 | Other (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Transmission shafts (including camshafts and crankshafts) and cranks > Camshafts and crankshafts > Other) | 2.5% | No., kg |
| 8483.10.5000 | Other transmission shafts and cranks (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Transmission shafts (including camshafts and crankshafts) and cranks) | Free | kg |
| 8483.20.4040 | Incorporating ball bearings (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Housed bearings, incorporating ball or roller bearings > Flange, take-up, cartridge and hanger units) | 4.5% | No. |
| 8483.20.4080 | Incorporating roller bearings (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Housed bearings, incorporating ball or roller bearings > Flange, take-up, cartridge and hanger units) | 4.5% | No. |
| 8483.20.8040 | Incorporating ball bearings (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Housed bearings, incorporating ball or roller bearings > Other) | 4.5% | No. |
| 8483.20.8080 | Incorporating roller bearings (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Housed bearings, incorporating ball or roller bearings > Other) | 4.5% | No. |
| 8483.30.4040 | Ball or roller bearing type (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Bearing housings; plain shaft bearings > Flange, take-up, cartridge and hanger units) | 4.5% | kg |
| 8483.30.4080 | Other (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Bearing housings; plain shaft bearings > Flange, take-up, cartridge and hanger units) | 4.5% | kg |
| 8483.30.8020 | Ball or roller bearing type (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Bearing housings; plain shaft bearings > Other > Bearing housings) | 4.5% | kg |
| 8483.30.8040 | Other (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Bearing housings; plain shaft bearings > Other > Bearing housings) | 4.5% | kg |
| 8483.30.8055 | Rod end bearings (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Bearing housings; plain shaft bearings > Other > Plain shaft bearings > With housing) | 4.5% | No., kg |
| 8483.30.8065 | Other (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Bearing housings; plain shaft bearings > Other > Plain shaft bearings > With housing) | 4.5% | No., kg |
| 8483.30.8070 | Spherical (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Bearing housings; plain shaft bearings > Other > Plain shaft bearings > Without housing) | 4.5% | No., kg |
| 8483.30.8090 | Other (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Bearing housings; plain shaft bearings > Other > Plain shaft bearings > Without housing) | 4.5% | No., kg |
| 8483.40.1000 | Torque converters (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately; ball or roller screws; gear boxes and other speed changers, including torque converters) | Free | No. |
| 8483.40.3040 | Fixed ratio speed changers (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately; ball or roller screws; gear boxes and other speed changers, including torque converters > Gear boxes and other speed changers > Fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation > Imported for use with machines for making cellulosic pulp, paper or paperboard) | Free | No. |
| 8483.40.3080 | Other (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately; ball or roller screws; gear boxes and other speed changers, including torque converters > Gear boxes and other speed changers > Fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation > Imported for use with machines for making cellulosic pulp, paper or paperboard) | Free | No. |
| 8483.40.5010 | Fixed ratio speed changers (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately; ball or roller screws; gear boxes and other speed changers, including torque converters > Gear boxes and other speed changers > Fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation > Other) | 2.5% | No. |
| 8483.40.5020 | Gear boxes and speed changers for wind turbines, as described in statistical note 6 to this chapter (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately; ball or roller screws; gear boxes and other speed changers, including torque converters > Gear boxes and other speed changers > Fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation > Other) | 2.5% | No. |
| 8483.40.5080 | Other (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately; ball or roller screws; gear boxes and other speed changers, including torque converters > Gear boxes and other speed changers > Fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation > Other) | 2.5% | No. |
| 8483.40.7000 | Other speed changers (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately; ball or roller screws; gear boxes and other speed changers, including torque converters > Gear boxes and other speed changers) | 25¢ each + 3.9% | No. |
| 8483.40.8000 | Ball or roller screws (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately; ball or roller screws; gear boxes and other speed changers, including torque converters) | 3.8% | No. |
| 8483.40.9000 | Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately; ball or roller screws; gear boxes and other speed changers, including torque converters) | 2.5% | No. |
| 8483.50.4000 | Gray-iron awning or tackle pulleys, not over 6.4 cm in wheel diameter (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Flywheels and pulleys, including pulley blocks) | 5.7% | No. |
| 8483.50.6000 | Flywheels (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Flywheels and pulleys, including pulley blocks > Other) | 2.8% | No. |
| 8483.50.9040 | Grooved pulleys (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Flywheels and pulleys, including pulley blocks > Other > Other) | 2.8% | No. |
| 8483.50.9080 | Other (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Flywheels and pulleys, including pulley blocks > Other > Other) | 2.8% | kg |
| 8483.60.4040 | Clutches (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Clutches and shaft couplings (including universal joints) > Clutches and universal joints) | 2.8% | No. |
| 8483.60.4080 | Universal joints (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Clutches and shaft couplings (including universal joints) > Clutches and universal joints) | 2.8% | No. |
| 8483.60.8000 | Other (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Clutches and shaft couplings (including universal joints)) | 2.8% | No. |
| 8483.90.1010 | Forged (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Toothed wheels, chain sprockets and other transmission elements presented separately; parts > Chain sprockets and parts thereof) | 2.8% | kg |
| 8483.90.1050 | Other (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Toothed wheels, chain sprockets and other transmission elements presented separately; parts > Chain sprockets and parts thereof) | 2.8% | kg |
| 8483.90.2000 | Parts of flange, take-up, cartridge and hanger units (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Toothed wheels, chain sprockets and other transmission elements presented separately; parts > Parts of bearing housings and plain shaft bearings) | 4.5% | kg |
| 8483.90.3000 | Other (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Toothed wheels, chain sprockets and other transmission elements presented separately; parts > Parts of bearing housings and plain shaft bearings) | 4.5% | kg |
| 8483.90.5010 | Forged gear blanks (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Toothed wheels, chain sprockets and other transmission elements presented separately; parts > Parts of gearing, gear boxes and other speed changers) | 2.5% | No. |
| 8483.90.5020 | Parts of gear boxes and speed changers for wind turbines (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Toothed wheels, chain sprockets and other transmission elements presented separately; parts > Parts of gearing, gear boxes and other speed changers) | 2.5% | kg |
| 8483.90.5080 | Other (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Toothed wheels, chain sprockets and other transmission elements presented separately; parts > Parts of gearing, gear boxes and other speed changers) | 2.5% | kg |
| 8483.90.7000 | Parts of articles of subheading 8483.20 (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Toothed wheels, chain sprockets and other transmission elements presented separately; parts > Other) | 5.5% | kg |
| 8483.90.8010 | Parts of articles of subheading 8483.60.80 (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Toothed wheels, chain sprockets and other transmission elements presented separately; parts > Other > Other) | 2.8% | kg |
| 8483.90.8040 | Parts of universal joints (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Toothed wheels, chain sprockets and other transmission elements presented separately; parts > Other > Other) | 2.8% | kg |
| 8483.90.8080 | Other (Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof > Toothed wheels, chain sprockets and other transmission elements presented separately; parts > Other > Other) | 2.8% | kg |
Documents required to import under 8483
Customs paperwork typically required to import these goods into the United States. Conditional items depend on shipment value, transport mode, or origin.
- Commercial InvoiceRequired
- Packing ListRequired
- Bill of Lading / Airway BillRequired
- CBP Entry Summary (7501)Required
Prepared and filed by your customs broker
- CBP Entry / Release (3461)Required
Prepared and filed by your customs broker
- Customs Bond (CBP 301)Conditional
Required for formal entries — generally shipments valued over $2,500
Single-entry or continuous bond, obtained through your broker or a surety
- Importer Security Filing (ISF "10+2")Conditional
Required for ocean freight only
Filed electronically at least 24 hours before loading at the foreign port
- Importer ID Input Record (CBP 5106)Conditional
Required to establish or update your importer-of-record number with CBP
One-time setup for a new importer; not filed per shipment
- Entry Manifest (CBP 7533)Conditional
Alternative to the 3461 for informal, low-value, or contiguous-country entries
- FCC Declaration (Form 740)Conditional
Required for electronic devices that emit radio frequency
- FDA Radiation Declaration (Form 2877)Conditional
Required for products that emit radiation (X-ray, laser, microwave, etc.)
Common questions
- What is HTS code 8483?
- HTS heading 8483 covers transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof. It sits in Chapter 84 (machinery and mechanical appliances) of the US Harmonized Tariff Schedule and contains 45 tariff lines.
- What is the duty rate for HTS 8483?
- General duty rates from 2.5% to 5.7%, with 4 duty-free lines; 1 line carries a specific or compound duty. The general rate applies to most-favoured-nation trading partners; goods from countries with a free trade agreement may qualify for a reduced or duty-free special rate.
- How many digits does a full HTS code have?
- US import entries require the full 10-digit HTS code. Heading 8483 is the first four digits — the remaining six narrow it down to the specific product, which is what determines the duty rate you actually pay.
Related headings in Chapter 84
- 8401Nuclear reactors; fuel elements (cartridges), non-irradiated, for nuclear reactors; machinery and apparatus for isotopic separation; parts thereof
- 8402Steam or other vapor generating boilers (other than central heating hot water boilers capable also of producing low pressure steam); super-heated water boilers; parts thereof
- 8403Central heating boilers (other than those of heading 8402) and parts thereof
- 8404Auxiliary plant for use with boilers of heading 8402 or 8403 (for example, economizers, super-heaters, soot removers, gas recoverers); condensers for steam or other vapor power units; parts thereof
- 8405Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers; parts thereof
- 8406Steam turbines and other vapor turbines, and parts thereof
- 8407Spark-ignition reciprocating or rotary internal combustion piston engines
- 8408Compression-ignition internal combustion piston engines (diesel or semi-diesel engines)