Heading 8547: Insulating fittings for electrical machines, appliances or equipment, being fittings…
Every line of heading 8547 in the U.S. Harmonized Tariff Schedule, with its general (column 1) duty rate. Open a code for the landed cost calculator, trade agreement rates and email alerts if the rate changes.
Insulating fittings for electrical machines, appliances or equipment, being fittings wholly of insulating material apart from any minor components of metal (for example, threaded sockets) incorporated during molding solely for the purposes of assembly, other than insulators of heading 8546; electrical conduit tubing and joints therefor, of base metal lined with insulating material
Chapter 85: Electrical machinery and equipment; sound and TV equipment. Schedule checked on November 8, 2026.
Not always the total: additional chapter 99 duties (such as Section 232 or Section 301), antidumping or countervailing duties may apply depending on the country of origin. See recent chapter 99 changes →
Tariff lines
| HTS code | Official description | General rate |
|---|---|---|
| 8547.10 | Insulating fittings of ceramics: | |
| 8547.10.40.00 | Ceramic insulators to be used in the production of spark plugs for natural gas-fueled, stationary, internal combustion engines | 3% |
| 8547.10.80.00 | Other | 3% |
| 8547.20.00.00 | Insulating fittings of plastics | Free |
| 8547.90.00 | Other | 4.6% |
| 8547.90.00.10 | Other insulating fittings | |
| 8547.90.00.20 | Conduit tubing | |
| 8547.90.00.30 | Threaded | |
| 8547.90.00.40 | Other |
Public records · unclaimed listings
U.S. manufacturers in this industry, from public records
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Exporting this product from the U.S.?
Exports are reported with Schedule B numbers. Heading 8547 has 6 of them. Schedule B lookup →
- 8547.10.0000INSULATING FITTINGS OF CERAMICS FOR ELECTRICAL MACHINES OR APPLIANCES
- 8547.20.0000INSULATING FITTINGS OF PLASTIC FOR MACHINES
- 8547.90.0010INSULATING FITTINGS FOR MACHINES NESOI
- 8547.90.0020ELECTRICAL CONDUIT TUBING LINED WITH INSULATION
- 8547.90.0030ELECTRICAL CONDUIT LINED WITH INSULATION, JOINTS, THREADED
- 8547.90.0040ELECTRICAL CONDUIT LINED WITH INSULATION, JOINTS, NESOI
Source: U.S. International Trade Commission, Harmonized Tariff Schedule; Schedule B: U.S. Census Bureau. Information only, not legal or customs advice; U.S. Customs and Border Protection decides the classification and the duty. Confirm with a licensed customs broker before you ship.
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