8547.90.00.40 - Other

This HTS category, 8547.90.00.40, specifically covers "Other" joints for electrical conduit tubing made of base metal lined with insulating material. These are joints that connect sections of conduit tubing, where the conduit itself is constructed from base metal but has an interior lining of insulating material. The primary function of these joints is to provide a secure and electrically insulated connection point for the conduit system, ensuring the safe passage and protection of electrical wires and cables.

Distinguishing this category from its sibling, 8547.90.00.30 (Threaded), is crucial for accurate classification. While both fall under the umbrella of joints for base metal conduit lined with insulating material, this category encompasses all such joints that are *not* threaded. This means the connection mechanism might rely on compression fittings, bayonet fittings, crimping, or other methods of assembly that do not involve screw threads for their primary joining function. The focus remains on the base metal construction and insulating liner, with the divergence being the specific method of joining.

As this is a leaf node within the HTS structure, there are no further subcategories. Therefore, classification within 8547.90.00.40 relies on a careful examination of the joint's construction and its method of connection to the conduit. Importers should ensure that the joint is indeed made of base metal with an insulating lining and that its method of attachment is not solely based on a threaded interface to correctly place it within this residual "other" category for conduit joints.