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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If general rotary pumps
Pumps not dedicated to Chapter 90 classify under 8413 per exclusion note (g)
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Import Tips & Compliance
• Specify fluid compatibility (silicone-based); include pump curve data
• Exclude from 8413 pumps via dedication proof
Related Products 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.