Gearbox Mounting Forging
Steel forging for accessory gearbox mounting bracket on regional turboprop engines, transmitting power to engine accessories. Under HTS 8411.91.90.81 as aircraft-specific steel forging part. Supports fuel pumps, generators, and hydraulic pumps.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If finished gear housing
Machined gearbox housings classify under gears and gearing.
If turboprop-specific parts
Some turboprop accessories have separate gas turbine classifications.
If generic mounting brackets
Non-engine-specific steel brackets are other structures/products.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Include gearbox interface specifications proving engine integration
• Certify vibration damping properties for propeller-driven applications
• Monitor AD/CVD cases specific to accessory drive forgings
Related Products under HTS 8411.91.90.81
Titanium Alloy Turbine Disk Forging
A high-strength steel forging shaped as a turbine disk for use in aircraft turbojet engines, designed to withstand extreme rotational speeds and temperatures. Classified under HTS 8411.91.90.81 as a steel forging component specifically for aircraft gas turbine engines. It forms the core rotating part where turbine blades are attached.
Compressor Spool Steel Forging
Steel forging for the compressor spool in high-bypass turbofan engines used on commercial aircraft, providing the structural backbone for multiple compressor stages. Falls under HTS 8411.91.90.81 due to its unfinished forged state and specific design for turbojet/turbopropeller parts in aviation. Essential for compressing incoming air in the engine core.
Fan Hub Forging for Turbofan Engine
Large steel forging serving as the central hub for the wide-chord fan blades in modern high-bypass ratio aircraft turbofan engines like those on Boeing 787. HTS 8411.91.90.81 applies as it's a rough forging dedicated to aircraft turbojet parts, prior to final machining. Critical for transferring torque from the engine shaft to fan blades.
Turbine Shaft Forging
Forged steel shaft blank for the high-pressure turbine section in military fighter jet engines, engineered for extreme thermal and centrifugal loads. Classified in HTS 8411.91.90.81 as a steel forging for aircraft turbopropeller/turbojet parts. Forms the rotating power transmission element connecting turbine stages.
Inlet Case Forging
Steel forging for the engine inlet case housing the fan frame in regional jet turbofan engines, providing structural support and airflow guidance. HTS 8411.91.90.81 covers this as an unfinished aircraft turbine steel forging. Protects internal components while managing boundary layer air.
Exhaust Nozzle Flange Forging
Heavy-duty steel flange forging connecting variable geometry exhaust nozzles in afterburning military turbojets. Specifically for aircraft turbines under HTS 8411.91.90.81 as steel forging parts. Enables thrust vectoring and noise suppression functions.