Analysis
Subheading 9111.90 covers parts, within heading 9111. The first six digits are shared by every country that uses the Harmonized System, so this part of the code is the same in the US, UK and EU schedules; the 3 US tariff lines below it are national.
None of its 3 lines is duty-free at the general rate. Rates run from 6.4% to 6.4% with a median of 6.4%, so the line you choose sets the duty.
The US splits it as follows: 9111.90.40 for of precious metal or of metal clad with precious metal (6.4%), 9111.90.50 for bezels, backs and centers (1.6¢ each + 6.8%) and 9111.90.70 for other: other (6.4%).
1 of the lines carry specific or compound rates (per kilogram, per dozen and so on) rather than a percentage, so their burden depends on the unit value of the goods.
By Census's concordance, most of its statistical lines are made by Other Measuring and Controlling Device Manufacturing (334519). Those are the NAICS industries a US producer of these goods would report under.
Tariff lines
| Line | Description | General rate |
|---|---|---|
| 9111.90.40 | Of precious metal or of metal clad with precious metal | 6.4% |
| 9111.90.50 | Bezels, backs and centers | 1.6¢ each + 6.8% |
| 9111.90.70 | Other: other | 6.4% |