8540 · 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:
This is a category heading rather than a rate line — pick one of the codes below to see its full duty stack.
Subordinate codes (11)
| Code | Description |
|---|---|
| 8540.11 | Color: |
| 8540.12 | Monochrome: |
| 8540.20 | Television camera tubes; image converters and intensifiers; other photocathode tubes: |
| 8540.40.10 | Data/graphic display tubes, monochrome; data/graphic display tubes, color, with a phosphor dot screen pitch smaller than 0.4 mm |
| 8540.60.00 | Other cathode-ray tubes |
| 8540.71 | Magnetrons: |
| 8540.79 | Other: |
| 8540.81.00.00 | Receiver or amplifier tubes |
| 8540.89.00 | Other |
| 8540.91 | Of cathode-ray tubes: |
| 8540.99 | Other: |
Frequently asked
- What does 8540 cover?
- 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:. This is a heading-level category with several subordinate codes — open one to see its full duty breakdown.
- Where does this data come from?
- Codes and MFN base rates come from the full USITC HTS 2026 Rev.11 export. Section 301/232/122 surcharge mappings are approximated pending code-level review. Every rate carries a source_url and effective_from, so you can trace it back to the controlling notice.