Belleville Disc Spring
Conical disc-shaped steel spring that stacks for high load capacity, used in bolted joints and safety valves. HTS 7320.90.50 applies to these other iron or steel spring configurations.
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 spring pins or simple disc springs
Certain disc types resemble threaded/spring pins in Chapter 73 fasteners.
If valve or cock appliances
Disc springs integral to valves classified as valve parts.
If non-spring stamped discs
Plain metal discs without elasticity are other steel products.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Specify stackable design and deflection specs to affirm spring status
• Material certs for high-temp alloys (e.g
• 17-7PH) prevent metal scrap misclass
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.