# HS chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof (page 5 of 6) > HS chapter 84 covers nuclear reactors, boilers, machinery and mechanical appliances; parts thereof. It has 86 headings, 84.01 to 84.87, and 538… Page 5 of 6. Source: https://border.bot/hs-codes/84?page=5 Last updated: 11 October 2026 [HS codes](https://border.bot/hs-codes) / [Chapter 84](https://border.bot/hs-codes/84) Page 5 of 6: subheadings 401 to 500 of 538. Previous page: [page 4](https://border.bot/hs-codes/84?page=4). Next page: [page 6](https://border.bot/hs-codes/84?page=6). ## Key facts - Chapter: 84 - Description: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof - Headings: 86 - Subheadings: 538 - Edition: HS2022 ## What this chapter covers HS chapter 84 covers nuclear reactors, boilers, machinery and mechanical appliances; parts thereof. It has 86 headings, 84.01 to 84.87, and 538 six-digit subheadings in HS2022. ### [84.64](https://border.bot/hs-codes/8464) Machine-tools for working stone, ceramics, concrete, asbestos- cement or like mineral materials or for cold working glass - [8464.20](https://border.bot/hs-codes/846420) Grinding or polishing machines - [8464.90](https://border.bot/hs-codes/846490) Other ### [84.65](https://border.bot/hs-codes/8465) Machine-tools (including machines for nailing, stapling, glueing or otherwise assembling) for working wood, cork, bone, hard rubber, hard plastics or similar hard materials - [8465.10](https://border.bot/hs-codes/846510) Machines which can carry out different types of machining operations without tool change between such operations - [8465.20](https://border.bot/hs-codes/846520) Machining centres - [8465.91](https://border.bot/hs-codes/846591) Other: Sawing machines - [8465.92](https://border.bot/hs-codes/846592) Other: Planing, milling or moulding (by cutting) machines - [8465.93](https://border.bot/hs-codes/846593) Other: Grinding, sanding or polishing machines - [8465.94](https://border.bot/hs-codes/846594) Other: Bending or assembling machines - [8465.95](https://border.bot/hs-codes/846595) Other: Drilling or morticing machines - [8465.96](https://border.bot/hs-codes/846596) Other: Splitting, slicing or paring machines - [8465.99](https://border.bot/hs-codes/846599) Other: Other ### [84.66](https://border.bot/hs-codes/8466) Parts and accessories suitable for use solely or principally with the machines of headings 84.56 to 84.65, including work or tool holders, self-opening dieheads, dividing heads and other special attachments for the machines; tool holders for any type of tool for working in the hand - [8466.10](https://border.bot/hs-codes/846610) Tool holders and self-opening dieheads - [8466.20](https://border.bot/hs-codes/846620) Work holders - [8466.30](https://border.bot/hs-codes/846630) Dividing heads and other special attachments for machines - [8466.91](https://border.bot/hs-codes/846691) Other: For machines of heading 84.64 - [8466.92](https://border.bot/hs-codes/846692) Other: For machines of heading 84.65 - [8466.93](https://border.bot/hs-codes/846693) Other: For machines of headings 84.56 to 84.61 - [8466.94](https://border.bot/hs-codes/846694) Other: For machines of heading 84.62 or 84.63 ### [84.67](https://border.bot/hs-codes/8467) Tools for working in the hand, pneumatic, hydraulic or with self-contained electric or non-electric motor - [8467.11](https://border.bot/hs-codes/846711) Pneumatic: Rotary type (including combined rotary-percussion) - [8467.19](https://border.bot/hs-codes/846719) Pneumatic: Other - [8467.21](https://border.bot/hs-codes/846721) With self-contained electric motor: Drills of all kinds - [8467.22](https://border.bot/hs-codes/846722) With self-contained electric motor: Saws - [8467.29](https://border.bot/hs-codes/846729) With self-contained electric motor: Other - [8467.81](https://border.bot/hs-codes/846781) Other tools: Chain saws - [8467.89](https://border.bot/hs-codes/846789) Other tools: Other - [8467.91](https://border.bot/hs-codes/846791) Parts: Of chain saws - [8467.92](https://border.bot/hs-codes/846792) Parts: Of pneumatic tools - [8467.99](https://border.bot/hs-codes/846799) Parts: Other ### [84.68](https://border.bot/hs-codes/8468) Machinery and apparatus for soldering, brazing or welding, whether or not capable of cutting, other than those of heading 85.15; gas-operated surface tempering machines and appliances - [8468.10](https://border.bot/hs-codes/846810) Hand-held blow pipes - [8468.20](https://border.bot/hs-codes/846820) Other gas-operated machinery and apparatus - [8468.80](https://border.bot/hs-codes/846880) Other machinery and apparatus - [8468.90](https://border.bot/hs-codes/846890) Parts ### [84.70](https://border.bot/hs-codes/8470) Calculating machines and pocket-size data recording, reproducing and displaying machines with calculating functions; accounting machines, postage-franking machines, ticket-issuing machines and similar machines, incorporating a calculating device; cash registers - [8470.10](https://border.bot/hs-codes/847010) Electronic calculators capable of operation without an external source of electric power and pocket-size data recording, reproducing and displaying machines with calculating functions - [8470.21](https://border.bot/hs-codes/847021) Other electronic calculating machines: Incorporating a printing device - [8470.29](https://border.bot/hs-codes/847029) Other electronic calculating machines: Other - [8470.30](https://border.bot/hs-codes/847030) Other calculating machines - [8470.50](https://border.bot/hs-codes/847050) Cash registers - [8470.90](https://border.bot/hs-codes/847090) Other ### [84.71](https://border.bot/hs-codes/8471) Automatic data processing machines and units thereof; magnetic or optical readers, machines for transcribing data onto data media in coded form and machines for processing such data, not elsewhere specified or included - [8471.30](https://border.bot/hs-codes/847130) Portable automatic data processing machines, weighing not more than 10kg, consisting of at least a central processing unit, a keyboard and a display - [8471.41](https://border.bot/hs-codes/847141) Other automatic data-processing machines: Comprising in the same housing at least a central processing unit and an input and output unit, whether or not combined - [8471.49](https://border.bot/hs-codes/847149) Other automatic data-processing machines: Other, presented in the form of systems - [8471.50](https://border.bot/hs-codes/847150) Processing units other than those of subheading 8471 41 or 8471 49, whether or not containing in the same housing one or two of the following types of unit: storage units, input units, output units - [8471.60](https://border.bot/hs-codes/847160) Input or output units, whether or not containing storage units in the same housing - [8471.70](https://border.bot/hs-codes/847170) Storage units - [8471.80](https://border.bot/hs-codes/847180) Other units of automatic data processing machines - [8471.90](https://border.bot/hs-codes/847190) Other ### [84.72](https://border.bot/hs-codes/8472) Other office machines (for example, hectograph or stencil duplicating machines, addressing machines, automatic banknote dispensers, coin-sorting machines, coin-counting or wrapping machines, pencil-sharpening machines, perforating or stapling machines) - [8472.10](https://border.bot/hs-codes/847210) Duplicating machines - [8472.30](https://border.bot/hs-codes/847230) Machines for sorting or folding mail or for inserting mail in envelopes or bands, machines for opening, closing or sealing mail and machines for affixing or cancelling postage stamps - [8472.90](https://border.bot/hs-codes/847290) Other ### [84.73](https://border.bot/hs-codes/8473) Parts and accessories (other than covers, carrying cases and the like) suitable for use solely or principally with machines of headings 84.70 to 84.72 - [8473.21](https://border.bot/hs-codes/847321) Parts and accessories of the machines of heading 8470: Of the electronic calculating machines of subheading 8470 10, 8470 21 or 8470 29 - [8473.29](https://border.bot/hs-codes/847329) Parts and accessories of the machines of heading 8470: Other - [8473.30](https://border.bot/hs-codes/847330) Parts and accessories of the machines of heading 84.71 - [8473.40](https://border.bot/hs-codes/847340) Parts and accessories of the machines of heading 84.72 - [8473.50](https://border.bot/hs-codes/847350) Parts and accessories equally suitable for use with the machines of two or more of the headings 84.70 to 84.72 ### [84.74](https://border.bot/hs-codes/8474) Machinery for sorting, screening, separating, washing, crushing, grinding, mixing or kneading earth, stone, ores or other mineral substances, in solid (including powder or paste) form; machinery for agglomerating, shaping or moulding solid mineral fuels, ceramic paste, unhardened cements, plastering materials or other mineral products in powder or paste form; machines for forming foundry moulds of sand - [8474.10](https://border.bot/hs-codes/847410) Sorting, screening, separating or washing machines - [8474.20](https://border.bot/hs-codes/847420) Crushing or grinding machines - [8474.31](https://border.bot/hs-codes/847431) Mixing or kneading machines: Concrete or mortar mixers - [8474.32](https://border.bot/hs-codes/847432) Mixing or kneading machines: Machines for mixing mineral substances with bitumen - [8474.39](https://border.bot/hs-codes/847439) Mixing or kneading machines: Other - [8474.80](https://border.bot/hs-codes/847480) Other machinery - [8474.90](https://border.bot/hs-codes/847490) Parts ### [84.75](https://border.bot/hs-codes/8475) Machines for assembling electric or electronic lamps, tubes or valves or flashbulbs, in glass envelopes; machines for manufacturing or hot working glass or glassware - [8475.10](https://border.bot/hs-codes/847510) Machines for assembling electric or electronic lamps, tubes or valves or flashbulbs, in glass envelopes - [8475.21](https://border.bot/hs-codes/847521) Machines for manufacturing or hot working glass or glassware: Machines for making optical fibres and preforms thereof - [8475.29](https://border.bot/hs-codes/847529) Machines for manufacturing or hot working glass or glassware: Other - [8475.90](https://border.bot/hs-codes/847590) Parts ### [84.76](https://border.bot/hs-codes/8476) Automatic goods-vending machines (for example, postage stamp, cigarette, food or beverage machines), including money- changing machines - [8476.21](https://border.bot/hs-codes/847621) Automatic beverage-vending machines: Incorporating heating or refrigerating devices - [8476.29](https://border.bot/hs-codes/847629) Automatic beverage-vending machines: Other - [8476.81](https://border.bot/hs-codes/847681) Other machines: Incorporating heating or refrigerating devices - [8476.89](https://border.bot/hs-codes/847689) Other machines: Other - [8476.90](https://border.bot/hs-codes/847690) Parts ### [84.77](https://border.bot/hs-codes/8477) Machinery for working rubber or plastics or for the manufacture of products from these materials, not specified or included elsewhere in this Chapter - [8477.10](https://border.bot/hs-codes/847710) Injection-moulding machines - [8477.20](https://border.bot/hs-codes/847720) Extruders - [8477.30](https://border.bot/hs-codes/847730) Blow moulding machines - [8477.40](https://border.bot/hs-codes/847740) Vacuum moulding machines and other thermoforming machines - [8477.51](https://border.bot/hs-codes/847751) Other machinery for moulding or otherwise forming: For moulding or retreading pneumatic tyres or for moulding or otherwise forming inner tubes - [8477.59](https://border.bot/hs-codes/847759) Other machinery for moulding or otherwise forming: Other - [8477.80](https://border.bot/hs-codes/847780) Other machinery - [8477.90](https://border.bot/hs-codes/847790) Parts ### [84.78](https://border.bot/hs-codes/8478) Machinery for preparing or making up tobacco, not specified or included elsewhere in this Chapter - [8478.10](https://border.bot/hs-codes/847810) Machinery - [8478.90](https://border.bot/hs-codes/847890) Parts ### [84.79](https://border.bot/hs-codes/8479) Machines and mechanical appliances having individual functions, not specified or included elsewhere in this Chapter - [8479.10](https://border.bot/hs-codes/847910) Machinery for public works, building or the like - [8479.20](https://border.bot/hs-codes/847920) Machinery for the extraction or preparation of animal or fixed vegetable or microbial fats or oils - [8479.30](https://border.bot/hs-codes/847930) Presses for the manufacture of particle board or fibre building board of wood or other ligneous materials and other machinery for treating wood or cork - [8479.40](https://border.bot/hs-codes/847940) Rope or cable-making machines - [8479.50](https://border.bot/hs-codes/847950) Industrial robots, not elsewhere specified or included - [8479.60](https://border.bot/hs-codes/847960) Evaporative air coolers - [8479.71](https://border.bot/hs-codes/847971) Passenger boarding bridges: Of a kind used in airports - [8479.79](https://border.bot/hs-codes/847979) Passenger boarding bridges: Other - [8479.81](https://border.bot/hs-codes/847981) Other machines and mechanical appliances: For treating metal, including electric wire coil-winders - [8479.82](https://border.bot/hs-codes/847982) Other machines and mechanical appliances: Mixing, kneading, crushing, grinding, screening, sifting, homogenising, emulsifying or stirring machines - [8479.83](https://border.bot/hs-codes/847983) Other machines and mechanical appliances: Cold isostatic presses - [8479.89](https://border.bot/hs-codes/847989) Other machines and mechanical appliances: Other - [8479.90](https://border.bot/hs-codes/847990) Parts ### [84.80](https://border.bot/hs-codes/8480) Moulding boxes for metal foundry; mould bases; moulding patterns; moulds for metal (other than ingot moulds), metal carbides, glass, mineral materials, rubber or plastics - [8480.10](https://border.bot/hs-codes/848010) Moulding boxes for metal foundry - [8480.20](https://border.bot/hs-codes/848020) Mould bases - [8480.30](https://border.bot/hs-codes/848030) Moulding patterns - [8480.41](https://border.bot/hs-codes/848041) Moulds for metal or metal carbides: Injection or compression types - [8480.49](https://border.bot/hs-codes/848049) Moulds for metal or metal carbides: Other - [8480.50](https://border.bot/hs-codes/848050) Moulds for glass - [8480.60](https://border.bot/hs-codes/848060) Moulds for mineral materials ## What it doesn’t cover Chapter 83, before it, covers miscellaneous articles of base metal; chapter 85, after it, covers electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles. ## How it is structured Chapter 84 is the first level of the Harmonized System. Its headings add two digits to the chapter number (84.01), and each heading's subheadings add two more. ## In other countries National tariff lines under chapter 84 are live on border.bot for the United States (1,706 lines, also used by 1 other country). - [United States](https://border.bot/countries/united-states/hs-codes/84): 1,706 lines, used by 1 other country Page 5 of 6: subheadings 401 to 500 of 538. Previous page: [page 4](https://border.bot/hs-codes/84?page=4). Next page: [page 6](https://border.bot/hs-codes/84?page=6). - Previous chapter: [83](https://border.bot/hs-codes/83) Miscellaneous articles of base metal - Next chapter: [85](https://border.bot/hs-codes/85) Electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles ## Frequently asked questions ### What does HS chapter 84 cover? HS chapter 84 covers nuclear reactors, boilers, machinery and mechanical appliances; parts thereof. ### How many headings and subheadings are in HS chapter 84? HS chapter 84 has 86 headings and 538 six-digit subheadings in HS2022. ### Which countries’ tariffs list national lines in HS chapter 84? National tariff lines under chapter 84 are live on border.bot for the United States (1,706 lines, also used by 1 other country). ## Sources and updates The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026. This page was last updated on 11 October 2026. Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling. Machine-readable: https://border.bot/hs-codes/84.json?page=5