7304.41.30 - Of an external diameter of less than 19 mm

This HTS category, 7304.41.30, specifically classifies seamless tubes, pipes, and hollow profiles of iron or steel that have undergone cold-drawing or cold-rolling processes and possess an external diameter of less than 19 millimeters. These characteristics are crucial for distinguishing these products from other categories within Chapter 73. The "cold-drawn or cold-rolled" designation indicates a manufacturing process that enhances dimensional accuracy and surface finish, important for applications requiring precise dimensions.

The primary distinction of this category from its sibling, 7304.41.60 ("Other"), lies in the strict diameter limitation. While the sibling category encompasses other seamless, cold-finished stainless steel hollow profiles of circular cross-section, 7304.41.30 is reserved for those meeting the specific criterion of having an external diameter under 19 mm. This detailed breakdown ensures that goods with very specific physical attributes are accurately categorized for trade purposes.

Within this narrow classification, further subdivisions exist to refine the identification of these small-diameter hollow profiles. The subcategory 7304.41.30.05 addresses products made from high-nickel alloy steel, highlighting the importance of material composition in classification. The remaining subcategory, marked as "Other," would encompass cold-drawn or cold-rolled stainless steel hollow profiles with an external diameter of less than 19 mm that do not fall under the high-nickel alloy steel designation, covering a broader range of stainless steel types.