Of X-ray tubes
Apparatus based on the use of X-rays or of alpha, beta, gamma or other ionizing radiations, whether or not for medical, surgical, dental or veterinary uses, including radiography or radiotherapy apparatus, X-ray tubes and other X-ray generators, high tension generators, control panels and desks, screens, examination or treatment tables, chairs and the like; parts and accessories thereof: > Other, including parts and accessories: > Other: > Parts and accessories: > Of X-ray tubes
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 9022.90.40.00
X-Ray Tube Anode Assembly
The anode assembly is the core rotating component inside an X-ray tube where electrons strike to generate X-rays. It is specifically designed as a replacement part for diagnostic and therapeutic X-ray tubes used in medical imaging equipment. Classified under HTS 9022.90.40.00 as a dedicated accessory of X-ray tubes per Chapter 90 note on parts classification.
X-Ray Tube Cooling Fan Module
A specialized cooling fan designed exclusively for dissipating heat from high-power X-ray tubes during prolonged medical imaging sessions. Features precision mounting for integration directly into X-ray tube housings. Falls under HTS 9022.90.40.00 as an accessory dedicated to X-ray tube operation.
X-Ray Tube High-Voltage Cable Connector
High-voltage connector assembly engineered specifically for X-ray tube power feeds, rated for 150kV+ operation with corona-resistant insulation. Used in radiography systems to safely transmit power to tube cathodes. HTS 9022.90.40.00 classification as X-ray tube accessory per parts rules.
X-Ray Tube Filament Transformer
Precision transformer supplying stable low-voltage/high-current to X-ray tube filaments for electron emission control. Matched to medical X-ray tube specifications for emission consistency. Classifies under HTS 9022.90.40.00 as dedicated X-ray tube accessory.
X-Ray Tube Bearing Kit
Magnetic or ball bearing kit designed for rotating anode X-ray tubes, providing oil-free high-speed operation under vacuum. Critical for maintaining anode RPM during fluoroscopy. HTS 9022.90.40.00 as specific X-ray tube replacement part.
X-Ray Tube Vacuum Seal Assembly
High-vacuum ceramic-metal seal maintaining X-ray tube internal vacuum integrity against cathode-anode differential pressures. Designed for CT scanner replacement service. Classifies as HTS 9022.90.40.00 X-ray tube accessory.
X-Ray Tube Collimator Mount Bracket
Precision machined bracket mounting primary collimator directly to X-ray tube housing for beam alignment. Ensures radiation field accuracy in interventional radiology. HTS 9022.90.40.00 as tube-specific accessory.
X-Ray Tube Cathode Assembly
Complete cathode unit with focusing cup and filament for electron beam generation in diagnostic X-ray tubes. Designed for 100-150kV operation in mammography systems. Principal X-ray tube part under HTS 9022.90.40.00.
X-Ray Tube Oil Circulation Pump
Dedicated dielectric oil pump maintaining cooling circulation around stationary anode X-ray tubes in dental units. Integrated flow sensors ensure thermal protection. HTS 9022.90.40.00 accessory classification.
X-Ray Tube Temperature Sensor
Thermocouple probe specifically calibrated for X-ray tube housing temperature monitoring during high-heat angiographic procedures. Interfaces with tube control electronics. Classifies HTS 9022.90.40.00.
X-Ray Tube Rotor Drive Controller
Electronic controller managing rotating anode acceleration/braking sequences for CT scanner X-ray tubes. Custom firmware for specific tube inertia characteristics. HTS 9022.90.40.00 electronic accessory.
X-Ray Tube Beryllium Window
Ultra-thin beryllium exit window for high-resolution industrial X-ray tubes transmitting low-energy X-rays for non-destructive testing. Radiation-hardened for continuous operation. HTS 9022.90.40.00 classification.
X-Ray Tube Grid Control Electrode
Bias grid electrode assembly modulating electron beam current in gated X-ray tubes for pulsed fluoroscopy. Precision spacing for microsecond switching. Dedicated X-ray tube component HTS 9022.90.40.00.
X-Ray Tube Shielding Flange
Tungsten alloy flange providing scatter radiation shielding at X-ray tube port interfaces with gantry housings. Bolted assembly for service replacement. HTS 9022.90.40.00 radiation safety accessory.
X-Ray Tube Alignment Jig
Precision alignment fixture positioning replacement X-ray tube cathodes relative to anodes during service rebuilds. Ensures focal spot accuracy post-maintenance. Classifies as HTS 9022.90.40.00 service accessory.