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Harmonized System Codes • Schedule B • Harmonized Commodity Description

HS Code 85409940: Electron Guns and RF Interaction Structures for Microwave Tubes

The HS Code 85409940 refers to electron guns and radio frequency (RF) interaction structures for microwave tubes falling under the subheadings 8540.71 through 8540.79. These products play a crucial role in various industries, particularly in the field of electronics and telecommunications.

Electron guns are devices that generate and control a focused beam of electrons. They are commonly used in cathode ray tubes (CRTs), electron microscopes, and particle accelerators. The RF interaction structures, on the other hand, are components that facilitate the interaction between the electron beam and the RF energy in microwave tubes.

These products are essential for the functioning of microwave tubes, which are widely utilized in various applications, including radar systems, satellite communication, medical equipment, and industrial processes.

Bound / MFN Duty Rate

The bound / MFN (Most Favored Nation) duty rate for HS Code 85409940 is free. This means that when a country lowers a trade barrier or opens up a market, it has to do so for the same goods or services from all its trading partners. This promotes fair trade and equal treatment among countries.

Special Tariff Preference Programs

Under various special tariff preference programs, the importation of products under HS Code 85409940 may enjoy duty-free treatment. These programs include:

Importing US States

HS Code 85409940 products are imported by several US states, including:

Exporting US States

HS Code 85409940 products are exported from the following US states:



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