7304.39.00.48 - Having a wall thickness less than 12.7 mm

This HTS classification, 7304.39.00.48, specifically identifies seamless tubes and pipes of iron or non-alloy steel that have a circular cross-section. The key distinguishing feature of this category is its wall thickness. These products must have a wall thickness that is strictly less than 12.7 mm. Furthermore, to fall under this classification, the outer diameter of the tube or pipe must be between 190.5 mm and 285.8 mm, inclusive.

This category differentiates itself from its sibling categories based on precise wall thickness measurements. For instance, 7304.39.00.52 covers tubes and pipes within the same diameter range but with a wall thickness of 12.7 mm or more, up to but not including 19 mm. Similarly, 7304.39.00.56 applies to products with a wall thickness of 19 mm or greater. Therefore, the critical differentiator for 7304.39.00.48 is its specified limitation to wall thicknesses below 12.7 mm.

As this is a leaf node within the HTS structure, there are no further subcategories that subdivide this specific classification. Classification into 7304.39.00.48 is therefore final, provided the goods meet all the criteria outlined, including material composition (iron or non-alloy steel), seamless construction, circular cross-section, the specified outer diameter range, and the wall thickness limitation. This level of specificity is crucial for accurate customs declarations and duty assessment.