Product classification
HS code for Coupling devices: 8607.30
Railway or tramway locomotives or rolling stock, parts, hooks and other coupling devices, buffers and parts thereof.
Classification of coupling devices under HS 8607.30
Coupling devices for railway or tramway rolling stock are classified under HS code 860730. This classification is governed by the General Rules for the Interpretation (GRI) of the Harmonized System, specifically GRI 1, which dictates that classification is determined by the terms of the headings and any relative section or chapter notes. Section XVII, which covers transport equipment, includes Chapter 86 for railway or tramway locomotives and rolling stock. Within this chapter, heading 8607 is dedicated to parts of such vehicles. Subheading 860730 specifically identifies hooks and other coupling devices, buffers, and their parts. These components are essential for the mechanical connection between railcars, ensuring the safe transmission of traction and braking forces. The classification applies because these items are identifiable as being suitable for use solely or principally with the vehicles of headings 8601 to 8606. The technical design of these couplings, such as Janney couplers, Scharfenberg couplers, or traditional screw couplings, distinguishes them from general-purpose mechanical couplings used in stationary industrial machinery.
- Covers
- Automatic couplers for freight and passenger cars
- Screw couplings and draw gear
- Buffer assemblies and buffer heads
- Drawbar hooks and shackles
- Pneumatic and electric coupling components integrated into mechanical couplers
- Emergency couplers for light rail vehicles
- Also under 8607.30
- Wabtec couplers
- Dellner Couplers
- Voith Turbo coupling systems
- Knorr-Bremse buffers
Codes often confused with 8607.30
Common mistake. A frequent point of confusion involves general mechanical couplings classified under HS code 848360. While 848360 covers clutches and shaft couplings for general machinery, railway-specific coupling devices must be classified in Chapter 86 due to Section XVII Note 3, which prioritizes parts specifically designed for transport equipment. Additionally, steel tube fittings or pipe couplings are often incorrectly assigned to 7307, but if they are part of a railway braking or coupling system, 860730 is the more specific and correct designation.
Top exporters and importers of HS 860730 (the code used for coupling devices), 2025
In 2025, the largest exporter of HS 860730 (the code used for coupling devices) in UN Comtrade data was China, with 22% of world exports; the largest importer in UN Comtrade data was the United States, with 10% of world imports. Mexico reports $267M of its chapter 86 imports without product detail (confidential), so its figure here may be too low and it may rank higher.
Figures cover everything classified under HS 860730, not only coupling devices.
Top exporters 2025 · share of world exports
- 1 China $178M 22% of world exports
- 2 Poland $147M 18% of world exports
- 3 United States $106M 13% of world exports
World total: $799M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $87M 10% of world imports
- 2 Mexico $82M 9.8% of world imports
- 3 China $53M 6.3% of world imports
Mexico reports $267M of its chapter 86 imports without product detail (confidential), so its figure here may be too low and it may rank higher.
World total: $838M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for coupling devices
Brazil classifies coupling devices under NCM 8607.30.00: HS 8607.30 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about coupling devices
What is the HS code for Coupling devices?
The HS code for Coupling devices is 860730 (Railway or tramway locomotives or rolling stock; parts, hooks and other coupling devices, buffers and parts thereof).
How do I classify Coupling devices for customs?
Coupling devices is classified under HS code 860730 — Railway or tramway locomotives or rolling stock; parts, hooks and other coupling devices, buffers and parts thereof. This is a 6-digit subheading level code.
What is the HS code for railway coupling devices?
The primary HS code for railway or tramway coupling devices, including hooks and buffers, is 860730.
Does this code include couplings for road vehicles?
No, coupling devices for road vehicles (such as fifth wheels for semi-trucks) are classified under heading 8708, specifically 870899, as they are parts of motor vehicles rather than railway rolling stock.
Which countries are the top exporters of coupling devices (HS 860730)?
In 2025, the top exporters of HS 860730 (the code used for coupling devices) in UN Comtrade data were China ($178M, 22% of world exports), Poland ($147M) and the United States ($106M). World exports came to about $799M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of coupling devices (HS 860730)?
In 2025, the top importers of HS 860730 (the code used for coupling devices) in UN Comtrade data were the United States ($87M, 10% of world imports), Mexico ($82M) and China ($53M). World imports came to about $838M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Mexico reports $267M of its chapter 86 imports without product detail (confidential), so its figure here may be too low and it may rank higher.
Is the HS code for Coupling devices the same in all countries?
The base HS code 860730 for Coupling devices is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for coupling devices in Brazil?
In Brazil, coupling devices (HS 860730) is classified under NCM 8607.30.00.