7318.21.00—Spring washers and other lock washers
General duty rate
5.8%
Across 2 10-digit lines
Coverage on this page
Plain-English explanation
HTS 7318.21.00 is an 8-digit tariff item of the U.S. Harmonized Tariff Schedule covering Spring washers and other lock washers. It sits in Chapter 73: Articles of iron or steel, Section XV: Base Metals and Articles of Base Metal and rolls up 2 10-digit statistical lines, all with a general duty rate of 5.8%. 11 Chapter 99 tariff modifications currently touch one or more lines under this tariff item, and 2 AD/CVD orders flag at least one child line.
10-digit lines under 7318.21.00(2)
Pick a line to view full rate detail and compute landed duty
Tariff modifications(11)
Chapter 99 overlays touching one or more lines under 7318.21.00
| Code | Authority | Rate |
|---|---|---|
| 9903.82.02 | section_232 | 50% |
| 9903.82.04 | section_232 | 25% |
| 9903.81.90 | section_232 | The duty provided in the applicable subheading + 50%. |
| 9903.82.15 | section_232 |
AD/CVD orders(2)
Antidumping or countervailing orders covering one or more lines under 7318.21.00
Frequently asked questions
What does HTS 7318.21.00 cover?
HTS 7318.21.00 is an 8-digit tariff item of the U.S. Harmonized Tariff Schedule covering Spring washers and other lock washers. It belongs to Chapter 73 and rolls up 2 10-digit statistical lines that brokers actually file at entry.
What is the duty rate for HTS 7318.21.00?
Every 10-digit line under HTS 7318.21.00 carries a general (Column 1) duty rate of 5.8%. Section 301, Section 232, and AD/CVD overlays may stack on top of this rate at the per-line level — open a specific 10-digit code to see its complete tariff stack.
How do I find the right 10-digit line under HTS 7318.21.00?
U.S. Customs requires entries to be filed at the 10-digit statistical level — the broader tariff item HTS 7318.21.00 is not directly fileable. Match your product description to the most specific 10-digit line in the list on this page; if multiple lines could apply, the General Rules of Interpretation (GRIs) and chapter notes determine which one governs.
Are there AD/CVD orders affecting HTS 7318.21.00?
Learn more
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