7320 - Springs and leaves for springs, of iron or steel:
Sub-classifications
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7320 1090
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7320 20
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7320 90
Overview
Chapter 73 of the Harmonized Tariff Schedule (HTS) encompasses a wide array of articles manufactured from iron or steel. Within this chapter, HTS 7320 specifically identifies springs and leaves for springs, made from iron or steel. This category is broad and includes any component designed to store mechanical energy, absorb shock, or maintain force through elastic deformation, provided it is constructed from the specified base metals.
When classifying goods under HTS 7320, it is important to differentiate them from other categories within Section XV and Chapter 73 that may involve iron or steel. For instance, while other headings might cover fasteners, structural components, or tools made from iron or steel, HTS 7320 is exclusively for spring mechanisms and their constituent parts. The defining characteristic is the inherent elastic property and intended function as a spring.
HTS 7320 is further divided into more specific subcategories to refine classification. These subdivisions are based on the primary form and construction of the spring. **7320.10** covers leaf springs, commonly found in vehicle suspensions, and their individual leaves. **7320.20** pertains to helical springs, which are coiled into a spiral shape and are ubiquitous in countless mechanical applications. Finally, **7320.90** serves as a catch-all for "Other" springs and spring parts that do not fit into the aforementioned categories, ensuring comprehensive coverage for all iron or steel springs not otherwise specified.