8411.91.90.81 - Steel forgings

This HTS classification, 8411.91.90.81, specifically designates steel forgings that are parts of turbojets or turbopropellers. These forgings represent components manufactured through a shaping process where heated metal is hammered or pressed into a desired form, offering superior strength and durability. Their inclusion under this heading signifies their direct relationship to the internal mechanisms of gas turbines used in aircraft propulsion systems.

This category is distinguished from its sibling, 8411.91.90.85 ("Other"), by its explicit material requirement: steel. While both classifications address "Other" parts of aircraft turbines within the broader category of parts for turbojets or turbopropellers, 8411.91.90.81 narrows the scope to only those parts that are steel forgings. This precise material specification is crucial for accurate tariff application.

As a leaf node, this classification does not have further subcategories. Therefore, the focus remains on the defining characteristics of steel forgings used in aircraft turbines. Importers and exporters should ensure that the goods being declared are indeed steel components shaped through forging processes and intended for use in turbojet or turbopropeller engines to correctly apply this tariff heading.