Of articles covered by subheading 9014.20.80
Direction finding compasses; other navigational instruments and appliances; parts and accessories thereof: > Parts and accessories: > Of articles covered by subheading 9014.20.80
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 9014.90.20
NMEA Output Converter Module
Signal converter module translating gyrocompass data to standard NMEA sentences for 9014.20.80 systems. Classified 9014.90.20 as accessory principally used with marine navigational instruments. Enables integration with autopilots and ECDIS.
Gyrocompass Sensor Module
Replacement sensor module for marine gyrocompasses classified under 9014.20.80, containing precision gyroscopes and electronic circuitry for directional accuracy. It falls under HTS 9014.90.20 as a dedicated part interchangeable solely with those navigational instruments. Essential for maintaining vessel orientation in GPS-denied environments.
Integrated Navigation Display Unit
LCD display replacement for electronic navigational instruments under 9014.20.80, featuring ruggedized touchscreen for compass and heading data. Classified in 9014.90.20 as it is dedicated exclusively to those marine direction-finding appliances. Supports real-time integration with GPS and inertial systems.
Magnetic Flux Gate Sensor
Precision fluxgate magnetometer sensor for marine gyrocompass systems in 9014.20.80, detecting Earth's magnetic field for heading reference. HTS 9014.90.20 applies as a principal part suitable solely for these navigational appliances. Used for fluxgate-stabilized compasses in commercial shipping.
Heading Repeater Interface Board
Printed circuit board for interfacing heading data repeaters in 9014.20.80 navigational systems, enabling NMEA 0183/2000 output. Falls under 9014.90.20 as an accessory principally used with marine gyrocompasses. Critical for bridge data distribution on vessels.
Gyrocompass Power Supply Unit
Dedicated 24VDC power supply module for gyrocompasses under 9014.20.80, with vibration-resistant design for marine use. Classified HTS 9014.90.20 per Chapter Note 2(b) as suitable principally with these navigational instruments. Ensures stable power during rough seas.
Navigation Data Processor Card
DSP processor card for real-time heading computation in 9014.20.80 gyrocompass systems. HTS 9014.90.20 classification as a part principally for these marine navigational appliances. Handles Kalman filtering for accurate orientation.
Compensator Assembly Kit
Mechanical compensator kit adjusting for vessel magnetic deviation in gyrocompasses (9014.20.80). Consists of adjustment rings and fluxgate calibration tools; classified 9014.90.20 as navigational accessory. Essential for accurate heading in steel-hulled ships.
Gyroscope Mounting Gimbal
Precision gimbal frame for suspending gyroscopes in 9014.20.80 marine compasses, providing 3-axis stabilization. HTS 9014.90.20 as part dedicated solely to these instruments. Machined from corrosion-resistant aluminum.
Marine Compass Damping Fluid Pump
Micro-pump for circulating damping fluid in gyrocompass gimbals (9014.20.80), maintaining stability. HTS 9014.90.20 per Note 2(b) as principally suitable for these appliances. Prevents oscillations in dynamic sea conditions.
Heading Transmitter Cable Assembly
Shielded cable harness connecting gyrocompass transmitters to repeaters in 9014.20.80 systems. Classified 9014.90.20 as wiring harness principally for these navigational instruments. MIL-spec waterproof connectors.
Gyrocompass Calibration Software Key
Hardware security key with embedded calibration software for 9014.20.80 gyrocompasses. Functions as accessory enabling field adjustments; HTS 9014.90.20 classification. USB interface for laptop-based setup.
Fluxgate Alignment Fixture
Adjustable fixture for precise alignment of fluxgate sensors in 9014.20.80 compasses during maintenance. Metal frame with angular scales; classified 9014.90.20 as dedicated accessory. Ensures sub-degree accuracy.
Compass Repeater Mounting Bracket
Stainless steel bracket for flush-mounting heading repeaters from 9014.20.80 gyrocompass systems. Vibration-damped design; HTS 9014.90.20 as navigational accessory. Fits standard 4-inch bridge cutouts.
Gyrocompass Maintenance Tool Kit
Complete toolkit for servicing 9014.20.80 gyrocompasses, including torque wrenches, alignment gauges, and fluid syringes. Packaged as set principally for these instruments; HTS 9014.90.20. Official service kit.