HS code · 6-digit subheading
HS Code 7320.90 – Iron or steel; springs n.e.c. in heading no. 7320
HS code 7320.90 is the 6-digit subheading for iron or steel, springs n.e.c. in heading no. 7320. It is used for wave springs, constant force springs, flat springs, disc springs (Belleville washers) and spring washers.
What HS 7320.90 covers
This 'not elsewhere specified' HS code serves as a catch-all for all other iron or steel springs that do not fall under the specific classifications of leaf springs (732010) or helical springs (732020). This includes a diverse range of specialized springs such as wave springs, constant force springs, flat springs, and disc springs (Belleville washers), which are critical in niche industrial applications, precision instruments, and various mechanical assemblies. The trade in these specialized springs is often driven by specific industry demands, requiring custom designs and high-precision manufacturing. Importers are typically manufacturers of complex machinery, aerospace components, and specialized consumer goods. Exporters are often highly specialized engineering firms capable of producing springs with unique geometries and performance characteristics, making quality and customization key trade differentiators.
- Covers
- Wave springs
- Constant force springs
- Flat springs
- Disc springs (Belleville washers)
- Spring washers
- Custom industrial springs
- Clock springs
- Examples
- Smalley wave springs
- Lee Spring custom springs
- Schnorr disc springs
- Associated Spring custom solutions
Codes often confused with 7320.90
Common mistake. This code is a residual category, so misclassification often occurs when a spring could fit into 732010 or 732020 but is incorrectly placed here, or when a spring is part of a larger assembly (e.g., 848790 for machine parts).
Top exporters and importers of HS code 732090, 2025
In 2025, the largest exporter of HS code 732090 in UN Comtrade data was Germany, with 24% of world exports; the largest importer in UN Comtrade data was the United States, with 9.1% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 Germany $480M 24% of world exports
- 2 United States $220M 11% of world exports
- 3 China $204M 10% of world exports
World total: $2.0B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $184M 9.1% of world imports
- 2 Germany $161M 8.0% of world imports
- 3 Poland $106M 5.2% of world imports
World total: $2.0B 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 7320.90
Brazil does not split HS 7320.90: its NCM code is 7320.90.00.
All Brazil NCM codes in heading 73.20 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 7320.90
What is HS code 732090?
HS code 732090 is a 6-digit subheading in the Harmonized System that covers: Iron or steel; springs n.e.c. in heading no. 7320. This 'not elsewhere specified' HS code serves as a catch-all for all other iron or steel springs that do not fall under the specific classifications of leaf springs (732010) or helical springs (732020). This includes a diverse range of specialized springs such as wave springs, constant force springs, flat springs, and disc springs (Belleville washers), which are critical in niche industrial applications, precision instruments, and various mechanical assemblies. The trade in these specialized springs is often driven by specific industry demands, requiring custom designs and high-precision manufacturing. Importers are typically manufacturers of complex machinery, aerospace components, and specialized consumer goods. Exporters are often highly specialized engineering firms capable of producing springs with unique geometries and performance characteristics, making quality and customization key trade differentiators.
What products fall under HS code 732090?
Wave springs, constant force springs, flat springs, disc springs (Belleville washers), spring washers, custom industrial springs, clock springs
What are common misclassifications for HS code 732090?
This code is a residual category, so misclassification often occurs when a spring could fit into 732010 or 732020 but is incorrectly placed here, or when a spring is part of a larger assembly (e.g., 848790 for machine parts).
Which countries are the top exporters of goods under HS code 732090?
In 2025, the top exporters of HS code 732090 in UN Comtrade data were Germany ($480M, 24% of world exports), the United States ($220M) and China ($204M). World exports came to about $2.0B, 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 goods under HS code 732090?
In 2025, the top importers of HS code 732090 in UN Comtrade data were the United States ($184M, 9.1% of world imports), Germany ($161M) and Poland ($106M). World imports came to about $2.0B, 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.
How is HS code 732090 structured?
HS code 732090 is a 6-digit subheading under the Harmonized System. The first 2 digits (73) identify the chapter, digits 3-4 (20) identify the heading, and digits 5-6 (90) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 732090?
In Brazil, HS code 732090 is NCM 7320.90.00. The last two digits are 00 because Brazil does not split this HS code further.