Picture Tube Base Glass Seal
Fused glass-to-metal seal that hermetically connects the CRT base pins to the glass envelope while maintaining vacuum integrity. Custom frit composition for thermal matching. Classified 8540.91.50.00.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as bulk glass components
Glass-to-metal seals without CRT specification may fall under fabricated glass articles.
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Import Tips & Compliance
• Provide frit composition analysis; test for helium leak rates; document Kovar pin material specs
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