Precision Drilled Sight Glass Windows
Drilled and edge-ground glass from heading 7004 or 7005 for industrial pressure vessel sight windows. Worked for mounting but supplied loose, under 7006.00.4050.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of lead crystal with 24% PbO
Subheading notes define lead crystal glass articles separately in 7013.91.
If tempered for safety in high-pressure use
Tempered or laminated safety glass for industrial use moves to 7007.
If imported fitted into valve or gauge assemblies
Parts of taps, valves, or gauges containing glass classify under Chapter 84.
Not sure which classification is right?
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Import Tips & Compliance
• Include pressure/temperature ratings in documentation for end-use verification
• Certify glass type (e.g
• borosilicate) to trace back to qualifying headings 7003-7005
• Package individually to avoid set classification; bulk risks lower duties but scrutiny
Related Products under HTS 7006.00.40.50
Tempered Bent Automotive Windshield Glass
This is curved and edge-worked glass made from float glass of heading 7005, tempered for safety, used as replacement windshields in passenger vehicles. It undergoes bending to match vehicle contours and edge working for precise fitting, classifying under 7006.00.4050 as worked glass not framed or fitted with other materials.
Engraved Decorative Glass Panels
Precision-engraved float glass panels from heading 7005, featuring custom etched designs for architectural dividers or shower doors. The engraving process qualifies as 'otherwise worked' under 7006, with smoothed edges but no framing.
Drilled Borosilicate Laboratory Flask Blanks
Borosilicate glass sheets from heading 7005, drilled with precise holes and edge-worked for forming lab equipment blanks. Classified in 7006.00.4050 as worked but not yet fitted into complete articles.
Enameled Shower Door Glass Panels
Float glass from heading 7005 with enameled opaque borders and edge-polished for frameless shower enclosures. The enameling and working qualify it for 7006.00.4050 without framing.
Bent Curved Mirror Substrate Glass
Edge-worked and bent float glass from heading 7005, prepared as substrates for silvering into automotive side mirrors. Lacks reflective coating or frame, fitting 7006.00.4050.
Engraved Tabletop Display Glass
Float glass panels edge-worked and laser-engraved with logos for retail product displays. Not framed, qualifies as 'otherwise worked' in 7006.00.4050.