Constant Force Spring Reel
A pre-stressed steel strip wound into a reel that exerts uniform force over extension, used in retractable cords and tape measures. Falls under HTS 7320.90.50 as other springs of steel, where the strip qualifies under the wire definition by cross-section.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If assembled as flat leaf-type for machinery
Leaf springs, even constant force, are distinctly headed from coil types.
If part of electric motor assemblies
Springs integral to motors classified with electrical machinery in Chapter 85.
If for drawing/measuring instruments like tape reels
Instrument-specific reels with springs go under Chapter 90.
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Import Tips & Compliance
• Specify if strip or wire-formed in invoices; chapter note applies to both if ≤16 mm
• Test for spring functionality; non-elastic strips could be reclassified as 7219 flat-rolled
Related Products under HTS 7320.90.50
Steel Torsion Spring for Clamps
A torsion spring made of steel wire that provides rotational force, commonly used in binder clips and hose clamps. It is included in HTS 7320.90.50 for other iron or steel springs not elsewhere specified. The wire cross-section adheres to the chapter's 16 mm limit.
Volute Spring for Shock Absorbers
Conical spiral steel spring that compresses progressively, applied in shock absorbers and recoil systems. Included in HTS 7320.90.50 for other steel springs beyond basic helical types.
Clock Spring for Steering Columns
Flat spiral steel spring wound in a clock-like coil for storing rotational energy in turn signal mechanisms. Classified HTS 7320.90.50 as other steel springs for automotive and appliance uses.
Negator Spring Strip
Pre-coiled flat steel strip spring for constant tension retrieval in seat belts and lanyards. HTS 7320.90.50 for other steel springs including strip types meeting wire specs.
Hairpin Clip Spring
U-shaped steel wire spring for quick-release clips in electronics and automotive trim. Falls in HTS 7320.90.50 as other simple wire springs.
Cantilever Spring Arm
Single-arm steel spring deflecting under load for parking brakes and levers. HTS 7320.90.50 for non-leaf cantilever springs.