7304.24.60.45 - Having an outside diameter exceeding 114.3 mm but less than 215.9 mm

This classification pertains to seamless tubing made from iron or steel, specifically stainless steel, used in the oil and gas drilling industry. The defining characteristic for inclusion within this specific HTS subcategory (7304.24.60.45) is its external diameter. Goods falling here must have an outside diameter that strictly exceeds 114.3 millimeters but remains less than 215.9 millimeters.

To differentiate this category from its siblings, consider the precise diameter ranges. Categories such as 7304.24.60.60 cover tubing with diameters of 215.9 mm or more up to 406.4 mm, while 7304.24.60.75 encompasses tubing with diameters exceeding 406.4 mm. Conversely, the sibling category not explicitly listed but implied by the provided diameter ranges covers tubing with an outside diameter not exceeding 114.3 mm. This meticulous segmentation ensures accurate tariff application based on the physical dimensions of the stainless steel drill tubing.

As this HTS classification represents a leaf node within the system, there are no further subcategories to explore under this specific code. Therefore, the classification is complete at this level, and the distinguishing factor remains solely the specified outside diameter range for stainless steel casing, tubing, and drill pipe used in oil and gas exploration.