6914.90.41.00 - Ceramic ferrules of alumina or zirconia, not exceeding 3 mm in diameter or 25 mm in length, having a fiber channel opening and/or ceramic mating sleeves of alumina or zirconia

This HTS classification, 6914.90.41.00, specifically covers ceramic ferrules and sleeves made from alumina or zirconia. These components are distinguished by their small dimensions, with diameters not exceeding 3 mm and lengths not exceeding 25 mm. A key identifying feature is the presence of a fiber channel opening within the ferrule or the design as a ceramic mating sleeve. These articles are typically utilized in precision applications, often within telecommunications or optical fiber systems, where their exact specifications and material properties are critical for function.

At this level, this specific subcategory (6914.90.41.00) is differentiated from its sibling, 6914.90.80.00, which is a residual "Other" category for ceramic articles not elsewhere specified. While 6914.90.80.00 would encompass a broader range of ceramic items within the "Other" category of Chapter 69, this classification is narrowly defined by the precise material (alumina or zirconia), dimensional limits, and functional features (fiber channel or mating sleeve) of the ceramic ferrules and sleeves.

As this is a leaf node within the HTS structure, there are no further subcategories. Classification into 6914.90.41.00 is conclusive for articles meeting all specified criteria. Therefore, for practical classification purposes, a thorough examination of the physical dimensions, the presence of a fiber channel or mating sleeve design, and confirmation of the alumina or zirconia composition is paramount to ensure correct entry.