Heading 8483 · Transmission shafts (including camshafts and crankshafts) and cranks; bearing…
8483.40
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:
Official notices
Actions of the President, the USTR or U.S. Customs and Border Protection (CBP) that name this code.
- Jul 23, 2026 · The White House Actions by the United States in the Investigations Under Section 301 of the Trade Act of 1974 of the Acts, Policies, and Practices of 60 Economies Related to the Failure of Each Economy To Impose and Effectively Enforce a Prohibition on the Importation of Goods Produced With Forced Labor
- Jul 20, 2026 · The White House Action by the United States in the Investigation Under Section 301 of the Trade Act of 1974 of Brazil's Acts, Policies, and Practices Related to Digital Trade and Electronic Payment Services; Unfair, Preferential Tariffs; Anti-Corruption Enforcement; Intellectual Property Protection; Ethanol Market Access; and Illegal Deforestation
- Jun 1, 2026 · The White House Further Adjusting the Tariff Regimes for Imports of Aluminum, Steel, and Copper Into the United States
- May 28, 2026 · USTR Implementing Certain Tariff-Related Elements of a Trade and Security Agreement Between the American Institute in Taiwan and the Taipei Economic and Cultural Representative Office in the United States
- Apr 2, 2026 · The White House Strengthening Actions Taken To Adjust Imports of Aluminum, Steel, and Copper Into the United States
- Feb 20, 2026 · The White House Imposing a Temporary Import Surcharge To Address Fundamental International Payments Problems
- Dec 18, 2025 · USTR Implementing Certain Tariff-Related Elements of the Framework for a United States-Switzerland-Liechtenstein Agreement on Fair, Balanced, and Reciprocal Trade
- Dec 4, 2025 · USTR Implementing Certain Tariff-Related Elements of the U.S.-Korea Strategic Trade and Investment Deal
- Nov 20, 2025 · The White House Modifying the Scope of Tariffs on the Government of Brazil
- Nov 14, 2025 · The White House Modifying the Scope of the Reciprocal Tariffs With Respect to Certain Agricultural Products
Mentioned in Chapter 99
The parts of Chapter 99, in the 2026 HTS Revision 22, that list HTS 8483.40, a broader code that includes it, or a narrower code within it.
| U.S. note | Excerpt | Headings that refer to it |
|---|---|---|
| U.S. note 2(aa)(iv) | (iv) As provided in heading 9903.03.05, the additional duty imposed by heading 9903.03.01 shall not apply to articles the product of any country that are civil aircraft (all aircraft other than military aircraft); their engines, parts and… | 9903.03.01, 9903.03.05 |
| U.S. note 2(v)(xxii) | (xxii) As provided in heading 9903.02.76, the additional duties imposed by headings 9903.02.19, 9903.02.20, 9903.82.02 and 9903.82.04–9903.82.17 shall not apply to articles the product of the European Union that are civil aircraft (all… | 9903.01.25, 9903.01.43, 9903.01.44, 9903.01.45, 9903.01.46, 9903.01.47 and 106 more |
| U.S. note 2(v)(xxiv)(b) | (b) As provided in heading 9903.02.81, the additional duties imposed by headings 9903.02.79, 9903.02.80, 9903.82.02 and 9903.82.04–9903.82.17 shall not apply to articles the product of South Korea that are civil aircraft (all aircraft… | 9903.01.25, 9903.01.43, 9903.01.44, 9903.01.45, 9903.01.46, 9903.01.47 and 106 more |
| U.S. note 2(v)(xxv)(c) | (c) As provided in headings 9903.02.85 and 9903.02.90, the additional duties imposed by headings 9903.02.82–9903.02.83 and 9903.02.87–9903.02.88 shall not apply to articles the product of Switzerland or Liechtenstein, respectively, that… | 9903.01.25, 9903.01.43, 9903.01.44, 9903.01.45, 9903.01.46, 9903.01.47 and 107 more |
| U.S. note 2(x)(iv) | (iv) As provided in heading 9903.01.82, the additional duties imposed by heading 9903.01.77 shall not apply to articles of civil aircraft (all aircraft other than military aircraft); their engines, parts, and components; their other parts,… | 9903.01.77, 9903.01.82 |
| U.S. note 16(c)(vi) | (c) Headings 9903.82.02–9903.82.26 apply to the full customs value of articles classifiable in the provisions of the HTSUS enumerated in the following lists. For articles classified in the listed provisions that are not in chapters 72, 73,… | 9903.82.01, 9903.82.03, 9903.82.05, 9903.82.09 |
| U.S. note 16(c)(vii) | (vii) Derivative steel articles: [Compiler’s note: List may begin on a subsequent page; read numbers from left to right.] | 9903.82.01, 9903.82.03, 9903.82.05, 9903.82.09, 9903.82.16 |
| U.S. note 19(k) | (k) The rates of duty in heading 9903.85.08 apply to all entries of derivative aluminum products classifiable in the following HTSUS provisions, unless the derivative aluminum product was processed in another country from aluminum articles… | 9903.85.68 |
| U.S. note 19(s) | (s) The rates of duty set forth in heading 9903.85.15 apply to all entries of derivative aluminum products of the United Kingdom classifiable in the following provisions of the HTSUS, unless the derivative aluminum product was processed in… | — |
| U.S. note 20(b) | (b) Heading 9903.88.01 applies to all products of China that are classified in the following 8-digit subheadings, except products of China granted an exclusion by the U.S. Trade Representative and provided for in: (1) heading 9903.88.05… | 9903.88.01 |
| U.S. note 20(f) | (f) Heading 9903.88.03 applies to all products of China that are classified in the following 8-digit subheadings, except products of China granted an exclusion by the U.S. Trade Representative and provided for in (1) heading 9903.88.13 and… | 9903.88.03, 9903.88.09 |
| U.S. note 20(n)(65) | (65) Non-toothed gears for office printers, each valued not over $7 (described in statistical reporting number | 9903.88.11 |
| U.S. note 20(xx)(51) | (51) Manual valve actuators, traveling nut type, of iron, each measuring over 20 cm but not exceeding 200 cm in length, suitable for use with ball, butterfly, plug or quadrosphere valves (described in statistical reporting number | 9903.88.45 |
| U.S. note 30(b) | (b) Heading 9903.90.08 applies to all products of the Russian Federation that are classified in the following 8-digit subheadings: [ Compiler's note : List may appear or continue on a subsequent page; blank cells reflect proclaimed… | 9903.90.08 |
| U.S. note 35(a) | (a) As provided in heading 9903.96.01, the additional duties imposed by headings 9903.01.25, 9903.82.02 and 9903.82.04–9903.82.17 shall not apply to articles of civil aircraft (all aircraft other than military aircraft); their engines,… | 9903.96.01 |
| U.S. note 35(b) | (b) As provided in heading 9903.96.02, the additional duties imposed by headings 9903.02.72, 9903.02.73, 9903.82.02 and 9903.82.04–9903.82.17 shall not apply to articles of civil aircraft (all aircraft other than military aircraft and… | 9903.96.02 |
| U.S. note 35(c) | (c) As provided in heading 9903.96.03, the additional duties imposed by headings 9903.82.02 and 9903.82.04–9903.82.19 shall not apply to articles the product of Taiwan that are civil aircraft (all aircraft other than military aircraft and… | 9903.96.03 |
| U.S. note 50(a)(iv) | (iv) As provided in heading 9903.05.05, the additional duty imposed by heading 9903.05.01 shall not apply to articles the product of Brazil that are civil aircraft (all aircraft other than military aircraft); their engines, parts and… | 9903.05.01, 9903.05.05 |
| U.S. note 51(d) | (d) As provided in heading 9903.03.16, the additional duties imposed by headings 9903.03.12–9903.03.14 shall not apply to articles of civil aircraft (all aircraft other than military aircraft and unmanned aircraft); their engines, parts… | 9903.03.16 |
| U.S. note 52(d) | (d) As provided in heading 9903.05.88, the additional duties imposed by headings 9903.05.20–9903.05.84 shall not apply to articles that are civil aircraft (all aircraft other than military aircraft); their engines, parts and components;… | 9903.05.20, 9903.05.21, 9903.05.22, 9903.05.23, 9903.05.24, 9903.05.25 and 60 more |
Being listed is not owing a duty. A note may list goods that a measure leaves out; whether a heading applies depends on the origin, the date and the product; and the measures on all the goods of a country list no code at all. The calculator says what applies.
In the tariff
- 8483Transmission 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
- 8483.40Gears 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
- 8483.40.10.00Torque convertersFree
- 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
- 8483.40.30Imported for use with machines for making cellulosic pulp, paper or paperboardFree
- 8483.40.30.40Fixed ratio speed changers
- 8483.40.30.80Other
- 8483.40.50Other2.5%
- 8483.40.50.10Fixed ratio speed changers
- 8483.40.50.20Gear boxes and speed changers for wind turbines, as described in statistical note 9 to this chapter
- 8483.40.50.80Other
- 8483.40.70.00Other speed changers25¢ each + 3.9%
- 8483.40.80.00Ball or roller screws3.8%
- 8483.40.90.00Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately2.5%