Harmonized Tariff Schedule of the U.S. › Chapter 85 Electrical machinery and equipment and parts thereof; sound and television recorders and reproducers
8540.71.20.00Tariff line
Classification path
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
8540
Microwave tubes (for example, magnetrons, klystrons, traveling wave tubes, carcinotrons), excluding grid-controlled tubes
Magnetrons
Modified for use as parts of microwave ovens
8540.71.20.00
Rates of duty
General rate (Column 1)Free
Special—
Column 235%
UnitNo.
Printed page 2939
Measure flags
for origin CN, entry date 2026-10-26 · base rate Free
- Section 301 forced-labor tariff (12.5%)9903.05.31Applies+12.5%China: Column 1 rate + 12.5% additional
- China 301 List 3 (9903.88.03)9903.88.03Applies+25%8-digit subheading 8540.71.20 is on L3
Confirmed total 37.5% · max 37.5%Full duty breakdown →