Chapter 85: Electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles

HTS heading 8547: Insulating fittings for electrical machines, appliances or equipment, being fittings wholly of insulating material apart from any minor com…

10 numbered lines under heading 8547, including 7 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.

HTS heading 8547
HTS codeDescriptionUnitGeneralSpecialColumn 2
8547Insulating 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:
8547.10Insulating fittings of ceramics:
8547.10.40.00Ceramic insulators to be used in the production of spark plugs for natural gas-fueled, stationary, internal combustion enginesNo.3%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)60%
8547.10.80.00OtherNo.3%Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)60%
8547.20.00.00Insulating fittings of plasticsNo.Free30%
8547.90.00Other4.6%Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)45%
8547.90.00.10Other insulating fittingsNo.
Electrical conduit tubing and joints therefor, of base metal lined with insulating material:
8547.90.00.20Conduit tubingkg
Joints:
8547.90.00.30Threadedkg
8547.90.00.40Otherkg

Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.

Source: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.