Slotted Spring Lock Washer USS Size 1/2
A carbon steel washer with a slotted helical design for superior vibration resistance per USS standards, standard for HVAC and plumbing fixtures. This non-threaded spring lock washer provides reliable locking.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | +50.0% | 50% |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
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 the washer is not a spring type
Non-spring washers are classified under this separate item.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the washer meets USS standards and is made of carbon steel
• Provide the slotted helical design details on the commercial invoice
• Check if the product complies with Canadian plumbing codes for HVAC applications
Related Products under Tariff item 7318.21.00
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