7320.90.50.10 - Suitable for use in mattress supports and mattresses of heading 9404

This HTS category, 7320.90.50.10, specifically classifies wire springs and leaves for springs made of iron or steel that are explicitly designed for use in mattress supports and mattresses falling under heading 9404. This designation is crucial as it narrows down the classification to components integral to bedding and sleeping furniture, distinguishing them from general-purpose wire springs.

The key differentiating factor for this subcategory lies in its intended application. While other "Other" wire springs might be used in a vast array of mechanical applications, from automotive suspensions to industrial machinery, the springs classified here have a direct and declared suitability for mattress construction. This specificity ensures that items intended for the bedding industry are correctly identified and potentially subject to different duty rates or trade agreements.

As this is a leaf node within the HTS, there are no further subcategories. Therefore, classification within 7320.90.50.10 hinges entirely on the material (iron or steel wire), the form (springs or leaves for springs), and the explicit intended use in mattress supports and mattresses of heading 9404. End-use documentation or product specifications will often be critical for confirming the correct classification.