# HTS 7318.21.00: Spring washers and other lock washers

> Plain-language tariff reference from the USITC Harmonized Tariff Schedule on [PlainTariff](https://plaintariff.com/).

## Duty rates

- **General (MFN) rate:** 5.8%
- **Special / FTA rate:** Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 2.9% (JP)
- **Column 2 rate:** 35%
- **Corpus rank:** #3220 of 6827 among dutiable tariff lines
- **Percentile among ad-valorem lines:** 76th of 13,544 rated lines

## Classification path

- **Section XV:** [Base Metals and Articles of Base Metal](https://plaintariff.com/section/xv-base-metals-and-articles-of-base-metal)
- **Chapter 73:** [Articles of iron or steel](https://plaintariff.com/chapter/chapter-73-articles-of-iron-or-steel)
- **HTS code:** 7318.21.00

## Related tools

- [Tariff calculator](https://plaintariff.com/tools/tariff-calculator)
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- [Methodology & sources](https://plaintariff.com/methodology)

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*Source: U.S. International Trade Commission Harmonized Tariff Schedule. HTML canonical: https://plaintariff.com/heading/73182100-spring-washers-and-other-lock-washers*