Product classification
HS code for Copper spring washers: 7415.21
Copper, washers, (including spring washers), not threaded.
Classification of copper spring washers under HS 7415.21
Copper spring washers are classified under HS code 741521, which covers non-threaded washers of copper or copper alloys. The classification is determined by the function of the article as a fastener and its mechanical design. Under the Harmonized System, heading 7415 includes a wide range of copper fasteners, and it is subdivided into non-threaded and threaded articles. Spring washers, which are designed to provide tension and prevent loosening due to vibration, fall under the non-threaded category. The material composition must be copper or a copper alloy (such as phosphor bronze, which is common for spring applications). This classification follows the principle that the specific function (a washer) and the material (copper) dictate the code. Unlike steel washers, which are found in Chapter 73, copper-based washers are strictly confined to Chapter 74. The 'spring' characteristic does not move the product to a different heading, as 741521 explicitly mentions 'including spring washers.' This ensures that all non-threaded copper washers, regardless of their specific mechanical tension properties, are grouped together for tariff purposes.
- Covers
- Copper helical spring washers
- Phosphor bronze spring washers
- Copper wave washers
- Copper split lock washers
- Conical spring washers made of copper alloys
- Also under 7415.21
- Dorman copper washers
- McMaster-Carr copper spring washers
- Bosch copper sealing washers
- Honda OEM copper crush washers
- Fastenal copper flat washers
Codes often confused with 7415.21
Common mistake. Copper spring washers are often confused with steel spring washers, which are classified under HS code 731821. It is vital to verify the base metal before classification. Another common error is misclassifying them under 741533 or 741539, which are reserved for threaded articles like screws and bolts. Since washers do not have threads, they must remain in the 74152x subheadings. Finally, some may mistakenly use 7419, the 'other articles of copper' category, but 7415 is more specific and takes precedence under GRI 3(a).
Top exporters and importers of HS 741521 (the code used for copper spring washers), 2025
In 2025, the largest exporter of HS 741521 (the code used for copper spring washers) in UN Comtrade data was Germany, with 24% of world exports; the largest importer in UN Comtrade data was China, with 16% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 741521, not only copper spring washers.
Top exporters 2025 · share of world exports
- 1 Germany $33M 24% of world exports
- 2 China $22M 16% of world exports
- 3 United States $13M 9.3% of world exports
World total: $139M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $29M 16% of world imports
- 2 United States $17M 9.6% of world imports
- 3 Mexico $15M 8.6% of world imports
World total: $177M 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 copper spring washers
Brazil classifies copper spring washers under NCM 7415.21.00: HS 7415.21 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about copper spring washers
What is the HS code for Copper spring washers?
The HS code for Copper spring washers is 741521 (Copper; washers, (including spring washers), not threaded). The HS code for copper spring washers is 741521, which covers non-threaded copper washers.
How do I classify Copper spring washers for customs?
Copper spring washers is classified under HS code 741521 — Copper; washers, (including spring washers), not threaded. This is a 6-digit subheading level code.
Can phosphor bronze washers be classified under this code?
Yes, because phosphor bronze is a copper alloy, and HS code 741521 covers both refined copper and copper alloy non-threaded washers.
Which countries are the top exporters of copper spring washers (HS 741521)?
In 2025, the top exporters of HS 741521 (the code used for copper spring washers) in UN Comtrade data were Germany ($33M, 24% of world exports), China ($22M) and the United States ($13M). World exports came to about $139M, 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 copper spring washers (HS 741521)?
In 2025, the top importers of HS 741521 (the code used for copper spring washers) in UN Comtrade data were China ($29M, 16% of world imports), the United States ($17M) and Mexico ($15M). World imports came to about $177M, 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.
Is the HS code for Copper spring washers the same in all countries?
The base HS code 741521 for Copper spring washers 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 copper spring washers in Brazil?
In Brazil, copper spring washers (HS 741521) is classified under NCM 7415.21.00.