Other
Turbojets, turbopropellers and other gas turbines, and parts thereof: > Parts: > Of turbojets or turbopropellers: > Other
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]
Subheadings
Products classified under HTS 8411.91.90
Turbojet Turbine Nozzle Guide Vane
Stator vanes that direct high-temperature exhaust gases onto turbine blades in turbojet engines, made from heat-resistant nickel alloys. Classified under HTS 8411.91.90 as an 'other' part of turbojets, distinct from compressor blades or engine casings. Critical for optimizing engine efficiency and thrust.
Turbojet Combustion Chamber Liner
Inner liner of the annular combustion chamber in turbojet engines, perforated for fuel-air mixing and cooled by airflow. Falls under HTS 8411.91.90 as other turbojet parts, not a complete casing. Made from high-temperature ceramics or alloys to contain combustion.
Turboprop Gearbox Mounting Bracket
Heavy-duty bracket securing the reduction gearbox to turboprop engine frame, precision-machined from titanium. While basic brackets have specific codes, this complex assembly falls under HTS 8411.91.90 as other turboprop parts. Distributes torsional loads safely.
Turboprop Accessory Drive Gearbox
Compact gearbox driving engine accessories like fuel pumps and generators from turboprop main shaft. Complex assembly qualifies for HTS 8411.91.90 as other turboprop parts. Precision gears ensure synchronized accessory operation.
Turbojet Inlet Guide Vane Ring
Circumferential ring of adjustable inlet guide vanes controlling airflow into turbojet compressors. Falls under HTS 8411.91.90 as other turbojet parts, integral stator assembly. Optimizes engine performance from startup to cruise.
Turbojet Fuel Nozzle Assembly
Multi-orifice fuel injection nozzle delivering atomized fuel into turbojet combustion chambers, with integrated swirler. HTS 8411.91.90 as other turbojet part beyond basic casings. Ensures complete combustion and low emissions.
Turbine Compressor Rotor Assembly
A precision-engineered rotor assembly used in the compressor section of turbojet engines, consisting of multiple blades mounted on a central disk. It falls under HTS 8411.91.90 as a part specifically designed for turbojets, not covered by more specific subheadings like casings or brackets. This component compresses incoming air to high pressure before combustion.
Turboprop Engine Shaft Bearing Housing
A specialized housing that supports main shaft bearings in turboprop engines, designed to withstand extreme speeds and temperatures. It qualifies for HTS 8411.91.90 as an 'other' part of turbopropellers, excluding standard casings. Ensures alignment and reduces vibration during power transmission to the propeller.
Turboprop Power Turbine Blade Set
Set of blades for the power turbine stage in turboprop engines that extracts energy to drive the propeller shaft. Classified under HTS 8411.91.90 as other turbopropeller parts, sold as matched sets for balance. Aerodynamically optimized for high-efficiency energy transfer.
Turbojet Variable Stator Vane Actuator
Hydraulic or electric actuator that adjusts stator vane angles in turbojet compressors for optimal performance across speeds. HTS 8411.91.90 covers this as other turbojet part, not basic brackets. Enables variable geometry for efficiency.