8540
4-digit headingThermionic, 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
This is a 4-digit heading — a category, not a filing code. Pick the more specific code beneath it that best matches your goods; only a 10-digit statistical code can be used on a customs entry.
Duty rates
No rate is published at this level — check the specific 10-digit statistical code beneath it.
| Rate | Value and what it means |
|---|---|
| General rate (Column 1) | See 10-digit codeColumn 1 general Applies to most trading partners — the standard "normal trade relations" rate. |
| Special rate (Column 1) | —Trade programs The country letters in parentheses are free trade agreement and preference programs. If your goods qualify under one of them, that rate replaces the general rate. |
| Column 2 rate | —Non-NTR Reserved for the small group of countries that do not have normal trade relations with the US (currently Cuba, North Korea, Russia and Belarus). Almost no importer uses this column — if you are shipping from anywhere else, ignore it. |
| Unit of quantity | — How CBP expects the quantity to be reported on the entry summary. |
Codes within Thermionic, 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
51 more specific lines fall under 8540.
- 8540.11Color6-digit headingThermionic, 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:
- 8540.11.10Non-high definition, non-projection, having a video display diagonal exceeding 35.56 cm8-digit subheadingThermionic, 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: > Color:15%
- 8540.11.10.30Not exceeding 39 cm10-digit statistical codeThermionic, 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: > Color: > Non-high definition, non-projection, having a video display diagonal exceeding 35.56 cm > Having a video display diagonal:
- 8540.11.10.40Exceeding 39 cm but not exceeding 45 cm10-digit statistical codeThermionic, 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: > Color: > Non-high definition, non-projection, having a video display diagonal exceeding 35.56 cm > Having a video display diagonal:
- 8540.11.10.50Exceeding 45 cm but not exceeding 50 cm10-digit statistical codeThermionic, 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: > Color: > Non-high definition, non-projection, having a video display diagonal exceeding 35.56 cm > Having a video display diagonal:
- 8540.11.10.55Exceeding 50 cm but not exceeding 63 cm10-digit statistical codeThermionic, 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: > Color: > Non-high definition, non-projection, having a video display diagonal exceeding 35.56 cm > Having a video display diagonal:
- 8540.11.10.85Exceeding 63 cm10-digit statistical codeThermionic, 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: > Color: > Non-high definition, non-projection, having a video display diagonal exceeding 35.56 cm > Having a video display diagonal:
- 8540.11.24.01Having a video display diagonal not exceeding 34.29 cm10-digit statistical codeThermionic, 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: > Color: > Non-high definition, non-projection, having a video display diagonal not exceeding 35.56 cm:7.5%
- 8540.11.28.01Other10-digit statistical codeThermionic, 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: > Color: > Non-high definition, non-projection, having a video display diagonal not exceeding 35.56 cm:15%
- 8540.11.30.00High definition, having a video display diagonal exceeding 35.56 cm10-digit statistical codeThermionic, 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: > Color:15%
- 8540.11.44.01Having a video display diagonal not exceeding 34.29 cm10-digit statistical codeThermionic, 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: > Color: > High definition, having a video display diagonal not exceeding 35.56 cm:7.5%
- 8540.11.48.01Other10-digit statistical codeThermionic, 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: > Color: > High definition, having a video display diagonal not exceeding 35.56 cm:15%
- 8540.11.50.00Other10-digit statistical codeThermionic, 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: > Color:15%
- 8540.12Monochrome6-digit headingThermionic, 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:
- 8540.12.10.00Non-high definition10-digit statistical codeThermionic, 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: > Monochrome: > 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:3.6%
- 8540.12.20.00High definition10-digit statistical codeThermionic, 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: > Monochrome: > 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:3.6%
- 8540.12.50Non-high definition8-digit subheadingThermionic, 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: > Monochrome: > Other:3.3%
- 8540.12.50.40Projection10-digit statistical codeThermionic, 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: > Monochrome: > Other: > Non-high definition
- 8540.12.50.80Other10-digit statistical codeThermionic, 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: > Monochrome: > Other: > Non-high definition
- 8540.12.70.00High definition10-digit statistical codeThermionic, 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: > Monochrome: > Other:3.3%
- 8540.20Television camera tubes; image converters and intensifiers; other photocathode tubes6-digit headingThermionic, 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:
- 8540.20.20Cathode-ray tubes8-digit subheadingThermionic, 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: > Television camera tubes; image converters and intensifiers; other photocathode tubes:6%
- 8540.20.20.40Color10-digit statistical codeThermionic, 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: > Television camera tubes; image converters and intensifiers; other photocathode tubes: > Cathode-ray tubes
- 8540.20.20.80Other10-digit statistical codeThermionic, 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: > Television camera tubes; image converters and intensifiers; other photocathode tubes: > Cathode-ray tubes
- 8540.20.40.00Other10-digit statistical codeThermionic, 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: > Television camera tubes; image converters and intensifiers; other photocathode tubes:3.3%
- 8540.40.10Data/graphic display tubes, monochrome; data/graphic display tubes, color, with a phosphor dot screen pitch smaller than 0.4 mm8-digit subheadingThermionic, 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:3%
- 8540.40.10.10Color10-digit statistical codeThermionic, 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: > Data/graphic display tubes, monochrome; data/graphic display tubes, color, with a phosphor dot screen pitch smaller than 0.4 mm
- 8540.40.10.50Other10-digit statistical codeThermionic, 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: > Data/graphic display tubes, monochrome; data/graphic display tubes, color, with a phosphor dot screen pitch smaller than 0.4 mm
- 8540.60.00Other cathode-ray tubes8-digit subheadingThermionic, 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:3%
- 8540.60.00.20Not exceeding 30 cm10-digit statistical codeThermionic, 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: > Other cathode-ray tubes > Having a video display diagonal:
- 8540.60.00.65Exceeding 30 cm but not exceeding 36 cm10-digit statistical codeThermionic, 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: > Other cathode-ray tubes > Having a video display diagonal:
- 8540.60.00.80Exceeding 36 cm10-digit statistical codeThermionic, 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: > Other cathode-ray tubes > Having a video display diagonal:
- 8540.71Magnetrons6-digit headingThermionic, 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: > Microwave tubes (for example, magnetrons, klystrons, traveling wave tubes, carcinotrons), excluding grid-controlled tubes:
- 8540.71.20.00Modified for use as parts of microwave ovens10-digit statistical codeThermionic, 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: > Microwave tubes (for example, magnetrons, klystrons, traveling wave tubes, carcinotrons), excluding grid-controlled tubes: > Magnetrons:Free
- 8540.71.40.00Other10-digit statistical codeThermionic, 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: > Microwave tubes (for example, magnetrons, klystrons, traveling wave tubes, carcinotrons), excluding grid-controlled tubes: > Magnetrons:3.7%
- 8540.79Other6-digit headingThermionic, 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: > Microwave tubes (for example, magnetrons, klystrons, traveling wave tubes, carcinotrons), excluding grid-controlled tubes:
- 8540.79.10.00Klystrons10-digit statistical codeThermionic, 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: > Microwave tubes (for example, magnetrons, klystrons, traveling wave tubes, carcinotrons), excluding grid-controlled tubes: > Other:3.3%
- 8540.79.20.00Other10-digit statistical codeThermionic, 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: > Microwave tubes (for example, magnetrons, klystrons, traveling wave tubes, carcinotrons), excluding grid-controlled tubes: > Other:3.7%
- 8540.81.00.00Receiver or amplifier tubes10-digit statistical codeThermionic, 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: > Other tubes:4.2%
- 8540.89.00Other8-digit subheadingThermionic, 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: > Other tubes:3.7%
- 8540.89.00.20Gas and vapor electron tubes10-digit statistical codeThermionic, 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: > Other tubes: > Other
- 8540.89.00.40Diodes, triodes and tetrodes10-digit statistical codeThermionic, 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: > Other tubes: > Other
- 8540.89.00.60Light-sensing tubes10-digit statistical codeThermionic, 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: > Other tubes: > Other
- 8540.89.00.80Other10-digit statistical codeThermionic, 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: > Other tubes: > Other
- 8540.91Of cathode-ray tubes6-digit headingThermionic, 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: > Parts:
- 8540.91.15.00Front panel assemblies10-digit statistical codeThermionic, 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: > Parts: > Of cathode-ray tubes:5.4%
- 8540.91.20.00Deflection coils10-digit statistical codeThermionic, 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: > Parts: > Of cathode-ray tubes:Free
- 8540.91.50.00Other10-digit statistical codeThermionic, 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: > Parts: > Of cathode-ray tubes:5.4%
- 8540.99Other6-digit headingThermionic, 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: > Parts:
- 8540.99.40.00Electron guns; radio frequency (RF) interaction structures for microwave tubes of subheadings 8540.71 through 8540.79, inclusive10-digit statistical codeThermionic, 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: > Parts: > Other:Free
- 8540.99.80.00Other10-digit statistical codeThermionic, 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: > Parts: > Other:Free
Chapter 85: Electrical Machinery and Equipment; Sound and TV Equipment; Parts
Browse every code in this chapter to compare neighbouring classifications.
View Chapter 85Source: USITC Harmonized Tariff Schedule, 2026 Basic Edition, Revision 16. Rate text is reproduced verbatim from the official export; category paths and duty estimates are derived.
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