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 8540: Thermionic, cold cathode or photocathode tubes (for example, vacuum or vapor or gas filled tubes, mercury arc rectifying tubes, cathode-ray…

52 numbered lines under heading 8540, including 38 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.

HTS heading 8540
HTS codeDescriptionUnitGeneralSpecialColumn 2
8540Thermionic, cold cathode or photocathode tubes (for example, vacuum or vapor or gas filled tubes, mercury arc rectifying tubes, cathode-ray tubes, television camera tubes); parts thereof:
Cathode-ray television picture tubes, including video monitor cathode-ray tubes:
8540.11Color:
8540.11.10Non-high definition, non-projection, having a video display diagonal exceeding 35.56 cm15%Free (A+,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)60%
Having a video display diagonal:
8540.11.10.30Not exceeding 39 cmNo.
8540.11.10.40Exceeding 39 cm but not exceeding 45 cmNo.
8540.11.10.50Exceeding 45 cm but not exceeding 50 cmNo.
8540.11.10.55Exceeding 50 cm but not exceeding 63 cmNo.
8540.11.10.85Exceeding 63 cmNo.
Non-high definition, non-projection, having a video display diagonal not exceeding 35.56 cm:
8540.11.24.01Having a video display diagonal not exceeding 34.29 cmNo.7.5%Free (A+,AU,B,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG)60%
8540.11.28.01OtherNo.15%Free (A+,AU,B,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG)60%
8540.11.30.00High definition, having a video display diagonal exceeding 35.56 cmNo.15%Free (A+,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)60%
High definition, having a video display diagonal not exceeding 35.56 cm:
8540.11.44.01Having a video display diagonal not exceeding 34.29 cmNo.7.5%Free (A+,AU,B,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG)60%
8540.11.48.01OtherNo.15%Free (A+,AU,B,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG)60%
8540.11.50.00OtherNo.15%Free (A+,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)60%
8540.12Monochrome:
Television picture tubes having a straight line dimension across the faceplate greater than 29 cm but having no straight line dimension across the faceplate that exceeds 42 cm:
8540.12.10.00Non-high definitionNo.3.6%Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)60%
8540.12.20.00High definitionNo.3.6%Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)60%
Other:
8540.12.50Non-high definition3.3%Free (A+,AU,B,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG)60%
8540.12.50.40ProjectionNo.
8540.12.50.80OtherNo.
8540.12.70.00High definitionNo.3.3%Free (A+,AU,B,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG)60%
8540.20Television camera tubes; image converters and intensifiers; other photocathode tubes:
8540.20.20Cathode-ray tubes6%Free (A+,AU,B,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG)35%
8540.20.20.40ColorNo.
8540.20.20.80OtherNo.
8540.20.40.00OtherNo.3.3%Free (A+,AU,B,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG)35%
8540.40.10Data/graphic display tubes, monochrome; data/graphic display tubes, color, with a phosphor dot screen pitch smaller than 0.4 mm3%Free (A+,AU,B,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG)35%
8540.40.10.10ColorNo.
8540.40.10.50OtherNo.
8540.60.00Other cathode-ray tubes3%Free (A+,AU,B,BH,CL,CO,D,E,IL, JO,KR,MA,OM,P,PA,PE,S,SG)35%
Having a video display diagonal:
8540.60.00.20Not exceeding 30 cmNo.
8540.60.00.65Exceeding 30 cm but not exceeding 36 cmNo.
8540.60.00.80Exceeding 36 cmNo.
Microwave tubes (for example, magnetrons, klystrons, traveling wave tubes, carcinotrons), excluding grid-controlled tubes:
8540.71Magnetrons:
8540.71.20.00Modified for use as parts of microwave ovensNo.Free35%
8540.71.40.00OtherNo.3.7%Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG)35%
8540.79Other:
8540.79.10.00KlystronsNo.3.3%Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG)35%
8540.79.20.00OtherNo.3.7%Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA, OM,P,PA,PE,S,SG)35%
Other tubes:
8540.81.00.00Receiver or amplifier tubesNo.4.2%Free (A+,AU,B,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG)35%
8540.89.00Other3.7%Free (A+,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)35%
8540.89.00.20Gas and vapor electron tubesNo.
8540.89.00.40Diodes, triodes and tetrodesNo.
8540.89.00.60Light-sensing tubesNo.
8540.89.00.80OtherNo.
Parts:
8540.91Of cathode-ray tubes:
8540.91.15.00Front panel assembliesNo.5.4%Free (A+,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)35%
8540.91.20.00Deflection coilsNo.Free35%
8540.91.50.00Otherkg5.4%Free (A+,AU,B,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG)35%
8540.99Other:
8540.99.40.00Electron guns; radio frequency (RF) interaction structures for microwave tubes of subheadings 8540.71 through 8540.79, inclusiveNo.Free35%
8540.99.80.00OtherNo.Free35%

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.