International HS 2022 reference

Tubes; microwave (for example klystrons, travelling wave tubes, carlinotrons), excluding magnetrons and grid-controlled tubes

International reference codes stop at six digits. Select a destination to explore national tariff information.

For information and planning purposes only. Tariff classification, customs valuation, and final duty liability depend on precise product composition, physical characteristics, and national customs regulations. This sheet does not constitute formal customs advice or a legally binding tariff ruling. Always verify final classifications with a licensed customs broker or the destination customs administration before submitting an import declaration.

Related classifications

8540.11

Tubes; cathode-ray television picture tubes, including video monitor cathode-ray tubes, colour

8540.12

Tubes; cathode-ray television picture tubes, including video monitor cathode-ray tubes, monochrome

8540.20

Tubes; television camera tubes, image converters and intensifiers, other photo-cathode tubes

8540.40

Tubes; data/graphic display tubes, monochrome; data/graphic display tubes, colour, with a phosphor dot screen pitch smaller than 0.4mm

8540.60

Tubes; cathode ray, n.e.c. in heading no. 8540

8540.71

Tubes; microwave, magnetrons, excluding grid-controlled tubes

8540.81

Valves and tubes; receiver or amplifier

8540.89

Valves and tubes; n.e.c. in heading no. 8540

8540.91

Tubes; parts of cathode-ray tubes

8540.99

Valves and tubes; parts of the valves and tubes of heading no. 8540, excluding parts of cathode-ray tubes