Open CRT Envelope Cylinder
A seamless open cylindrical glass envelope body for cathode-ray tubes, prior to sealing or fitting attachment, used in X-ray or medical imaging CRTs. Falls under HTS 7011.20.85.40 as other glass parts for CRTs. Designed for high vacuum integrity and electron deflection.
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 unworked tube lengths not CRT-specific
General cast/rolled glass tubes are 7002; CRT dedication changes to 7011.
If with metal fittings or closures attached
Glass parts with fittings for lamps/CRT are reclassified to 7011.90.
If laboratory ampoules or capsules of similar shape
Lab glassware like ampoules goes to 7017, based on end-use not CRT tech.
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Import Tips & Compliance
• Ensure invoices specify 'for CRT' to distinguish from general laboratory glass tubes
• Test for lead content if crystal grade, though not required for this classification
• Batch shipments by size to optimize freight and avoid partial duty assessments
Related Products under HTS 7011.20.85.40
Glass CRT Neck Tube
A precision-formed glass tube serving as the neck section of a cathode-ray tube (CRT) envelope, open at one end for electron gun attachment. It falls under HTS 7011.20.85.40 as an open glass part specifically for CRTs, without any fittings. These components ensure vacuum sealing and electron beam alignment in older display technologies.
CRT Faceplate Glass Blank
An open-ended cylindrical glass blank intended for final processing into the faceplate of a cathode-ray tube, providing the viewing screen surface. Classified in HTS 7011.20.85.40 as an unfinished open glass part for CRTs without fittings. It supports phosphor coating and electron beam interaction in television or monitor CRTs.
CRT Cone Glass Section
A tapered open glass cone component that connects the neck to the faceplate in CRT envelopes, essential for beam focusing. It is categorized under HTS 7011.20.85.40 as other open glass parts for cathode-ray tubes, excluding bulbs or those with fittings. Used in oscilloscope and radar display CRTs.
Precision CRT Stem Tube
A narrow open glass stem tube for mounting electrodes in CRT electron guns, without pins or fittings. Classified in HTS 7011.20.85.40 for other open CRT glass parts. Critical for maintaining vacuum seals in monochrome or color CRT assemblies.
CRT Phosphor Screen Glass
Open-ended glass substrate prepped for phosphor deposition in CRT faceplates, used in avionics displays. Under HTS 7011.20.85.40 as other glass parts for cathode-ray tubes, open and without fittings. Ensures high-resolution imaging through precise thickness control.
High-Voltage CRT Bulb Shell
An open glass bulb shell for high-voltage cathode-ray tubes in industrial oscilloscopes, without base fittings. Fits HTS 7011.20.85.40 as other open envelopes/parts for CRTs. Built to withstand deflection yoke pressures.