HS code · 6-digit subheading
HS Code 8547.90 – Insulating fittings; (other than of ceramics or plastics), for electrical machines, appliances and equipment, excluding insulators of heading no. 8546
HS code 8547.90 is the 6-digit subheading for insulating fittings, (other than of ceramics or plastics), for electrical machines, appliances and equipment, excluding insulators of heading no. 8546. It is used for mica insulating sheets, glass fiber insulating tubes, composite insulating rods, silicone rubber bushings and epoxy resin spacers.
What HS 8547.90 covers
This code covers specialized insulating fittings crucial for electrical safety and performance in various industrial and consumer applications. Unlike ceramic or plastic insulators, these are made from materials like glass, mica, or composite materials, chosen for their superior dielectric strength, heat resistance, or mechanical properties in demanding environments. International trade in these components is driven by manufacturers of heavy electrical machinery, power distribution equipment, and high-tech electronics who require precise insulation solutions. Exporters are often specialized component manufacturers, while importers are typically assembly plants or MRO (Maintenance, Repair, and Operations) providers. Key considerations include material specifications, voltage ratings, and compliance with international safety standards like IEC or UL, as failure can lead to catastrophic equipment malfunction or safety hazards. The global push for energy efficiency and reliable infrastructure continuously fuels demand for advanced insulating materials.
- Covers
- Mica insulating sheets
- Glass fiber insulating tubes
- Composite insulating rods
- Silicone rubber bushings
- Epoxy resin spacers
- Phenolic laminate barriers
- Nomex paper insulation
- Examples
- ABB high-voltage bushings
- Siemens transformer insulation
- GE industrial motor insulators
- DuPont Nomex insulation
- 3M electrical tapes (specialized types)
Codes often confused with 8547.90
Common mistake. This code can be confused with 8546 (electrical insulators) if the material isn't carefully considered, as 8546 specifically covers ceramic or glass insulators. It might also be confused with 854710 (ceramic insulating fittings) or 854720 (plastic insulating fittings) if the material composition is not correctly identified.
Top exporters and importers of HS code 854790, 2025
In 2025, the largest exporter of HS code 854790 in UN Comtrade data was China, with 33% of world exports; the largest importer in UN Comtrade data was the United States, with 12% 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 China $515M 33% of world exports
- 2 United States $167M 11% of world exports
- 3 Mexico $87M 5.7% of world exports
World total: $1.5B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $178M 12% of world imports
- 2 South Korea $115M 7.8% of world imports
- 3 China $87M 5.8% of world imports
World total: $1.5B 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 8547.90
Brazil does not split HS 8547.90: its NCM code is 8547.90.00.
All Brazil NCM codes in heading 85.47 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 8547.90
What is HS code 854790?
HS code 854790 is a 6-digit subheading in the Harmonized System that covers: Insulating fittings; (other than of ceramics or plastics), for electrical machines, appliances and equipment, excluding insulators of heading no. 8546. This code covers specialized insulating fittings crucial for electrical safety and performance in various industrial and consumer applications. Unlike ceramic or plastic insulators, these are made from materials like glass, mica, or composite materials, chosen for their superior dielectric strength, heat resistance, or mechanical properties in demanding environments. International trade in these components is driven by manufacturers of heavy electrical machinery, power distribution equipment, and high-tech electronics who require precise insulation solutions. Exporters are often specialized component manufacturers, while importers are typically assembly plants or MRO (Maintenance, Repair, and Operations) providers. Key considerations include material specifications, voltage ratings, and compliance with international safety standards like IEC or UL, as failure can lead to catastrophic equipment malfunction or safety hazards. The global push for energy efficiency and reliable infrastructure continuously fuels demand for advanced insulating materials.
What products fall under HS code 854790?
Mica insulating sheets, Glass fiber insulating tubes, Composite insulating rods, Silicone rubber bushings, Epoxy resin spacers, Phenolic laminate barriers, Nomex paper insulation
What are common misclassifications for HS code 854790?
This code can be confused with 8546 (electrical insulators) if the material isn't carefully considered, as 8546 specifically covers ceramic or glass insulators. It might also be confused with 854710 (ceramic insulating fittings) or 854720 (plastic insulating fittings) if the material composition is not correctly identified.
Which countries are the top exporters of goods under HS code 854790?
In 2025, the top exporters of HS code 854790 in UN Comtrade data were China ($515M, 33% of world exports), the United States ($167M) and Mexico ($87M). World exports came to about $1.5B, 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 854790?
In 2025, the top importers of HS code 854790 in UN Comtrade data were the United States ($178M, 12% of world imports), South Korea ($115M) and China ($87M). World imports came to about $1.5B, 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 854790 structured?
HS code 854790 is a 6-digit subheading under the Harmonized System. The first 2 digits (85) identify the chapter, digits 3-4 (47) 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 854790?
In Brazil, HS code 854790 is NCM 8547.90.00. The last two digits are 00 because Brazil does not split this HS code further.