Picture Tube Base Glass Seal
A fused glass-to-metal seal that hermetically connects CRT base pins to the glass envelope, maintaining vacuum integrity. It uses a custom frit composition for thermal matching. This is a part of a cathode-ray tube, not a front panel assembly, and is classified as other CRT parts.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the seal is part of a front panel assembly
Front panel assemblies are specifically provided for under this item.
If the seal is a glass envelope for a cathode-ray tube
Glass envelopes for cathode-ray tubes are classified under this heading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Classify the seal as a part of a cathode-ray tube, not as a glass article of Chapter 70
• Provide technical data on the frit composition to support the classification
• Ensure the seal is not part of a front panel assembly, which would be classified elsewhere
Related Products under Tariff item 8540.91.90
CRT Bulb Spacer Ring
This ceramic spacer ring is a part of a cathode-ray tube, used to maintain proper spacing during assembly. It is not a front panel assembly, as it does not include the glass panel or phosphor coating, and thus falls under this tariff item for other parts of cathode-ray tubes.
CRT Convergence Purify Magnet Assembly
This magnet assembly is a part of a cathode-ray tube, used for convergence and purity correction. It is not a front panel assembly, as it does not include the glass panel or phosphor coating, and thus falls under this tariff item for other parts of cathode-ray tubes.
CRT Deflection Yoke Mounting Bracket
This mounting bracket is a part of a cathode-ray tube, used to position the deflection yoke. It is not a front panel assembly, as it does not include the glass panel or phosphor coating, and thus falls under this tariff item for other parts of cathode-ray tubes.
CRT Internal Magnetic Shielding Foil
This shielding foil is a part of a cathode-ray tube, used to protect the electron beam from magnetic interference. It is not a front panel assembly, as it does not include the glass panel or phosphor coating, and thus falls under this tariff item for other parts of cathode-ray tubes.
CRT Shadow Mask Frame Assembly
This shadow mask frame assembly is a part of a cathode-ray tube, used to align electron beams with phosphors. It is not a front panel assembly, as it does not include the glass panel or phosphor coating, and thus falls under this tariff item for other parts of cathode-ray tubes.
CRT Socket Base for Electron Gun
This socket base is a part of a cathode-ray tube, used to connect the electron gun to power leads. It is not a front panel assembly, as it does not include the glass panel or phosphor coating, and thus falls under this tariff item for other parts of cathode-ray tubes.