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Springs and leaves for springs, of iron or steel: > Other: > Other > Of wire: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 7320.90.50.20
Phosphor Bronze Equivalent Steel Wire Spring
Steel wire spring mimicking phosphor bronze properties for electrical contacts. HTS 7320.90.5020 as steel wire spring ≤16mm, used in switches/relays where conductivity secondary to strength.
Small Diameter Tension Spring
Fine wire tension spring (0.5-2mm dia) for medical devices and instruments. 7320.90.5020 for other wire springs, precision-wound stainless steel. Biocompatible finish.
Double Torsion Wire Spring
Dual-leg torsion spring from music wire for battery contacts and clamps. HTS 7320.90.5020 wire spring category.
Conical Compression Wire Spring
Tapered conical spring from steel wire for progressive loading in shock absorbers. 7320.90.5020 as other wire spring.
Square Wire Belleville Washer Spring
Square-section wire disc spring (Belleville) for high-load stacking. Wire ≤16mm qualifies 7320.90.5020.
Hairpin Tension Spring
Hairpin/bungee-style wire spring for gates and tarps. 7320.90.5020 classification.
Variable Pitch Compression Spring
Cylindrical spring with varying coil pitch for specific load curves. Steel wire ≤16mm for 7320.90.5020.
Clockwise Torsion Spring
Right-hand wound torsion spring for counterbalancing. Excludes actual clock/watch springs.
Nested Die Spring Set
Stackable rectangular wire springs for heavy press dies. Sold as matched set but individual springs classify 7320.90.5020.
Stainless Steel Compression Coil Spring
A helical spring made from stainless steel wire under 16mm diameter, designed to resist compressive forces in industrial machinery. It falls under HTS 7320.90.5020 as a wire spring, other than leaf springs, per Chapter 73 wire definition (cross-section ≤16mm). Used in automotive suspensions and valves.
Carbon Steel Extension Spring
Wire-formed extension spring of carbon steel, with loops at ends for tensile applications in tools and appliances. Classified under 7320.90.5020 as 'other' wire springs (diameter <16mm), distinct from leaf or vehicle-specific types. Common in garage doors and trampolines.
Music Wire Torsion Spring
High-carbon music wire torsion spring for rotational force resistance, used in clothespins and automotive hinges. HTS 7320.90.5020 applies to this 'other' wire spring (≤16mm cross-section), per chapter notes excluding leaves/clock springs. Precision-formed for tight tolerances.
Galvanized Steel Coil Wave Spring
Wave-formed coil spring from galvanized steel wire, providing compact axial load in bearings and pumps. Falls under 7320.90.5020 as other wire spring (wire ≤16mm), not leaf or vehicle-specific. Corrosion-resistant for harsh environments.
Precision Steel Die Spring
Heavy-duty rectangular wire die spring for stamping presses, color-coded by load rate. HTS 7320.90.5020 for wire springs (≤16mm), other than leaves, used in manufacturing dies. High-cycle fatigue resistance.
Silicon Chrome Wire Spring
Silicon-chromium alloy steel wire spring for high-temperature valves and engines. Classified 7320.90.5020 as other wire spring (≤16mm wire), valued for heat/ fatigue resistance. Automotive and aerospace applications.