8411.82.40.00 - Aircraft turbines

This HTS category, 8411.82.40.00, specifically classifies "Aircraft turbines" that are also categorized as "Other gas turbines" and have a power output exceeding 5,000 kilowatts (kW). This designation applies to gas turbines designed for use in aircraft propulsion systems, where their substantial power output is a key defining characteristic. These are distinct from other types of gas turbines that might be used for industrial power generation or other applications, even if they also fall under the broader heading of 8411.

The primary distinguishing factor within this level is the power rating. While sibling category 8411.82.80 covers "Other" gas turbines exceeding 5,000 kW, it likely encompasses those not specifically designated for aircraft use. Therefore, the classification here hinges on the intended application of the turbine being for aircraft, coupled with its significant power output.

As a leaf node, there are no further subcategories under 8411.82.40.00. This means that any aircraft turbine meeting the criteria of being an "other gas turbine" and having a power output exceeding 5,000 kW will be classified directly under this code. Examples could include engines for large commercial airliners or heavy-lift military aircraft where high thrust and power are essential for operation.