Yarn — HTS 5510
Yarn (other than sewing thread) of artificial staple fibers, not put up for retail sale
Chapter 55 › Heading 5510
2026 HTS Rev 19 Synced Rules verified Operational
Written to help non-specialists understand this page. Rates, dates, and legal facts come from the official records above and on the linked source.
HTS heading 5510 is a four-digit product category for yarn made from artificial staple fibers, other than sewing thread, when the yarn is not put up for retail sale. “Artificial” generally refers to man-made fibers produced from natural polymers, such as regenerated cellulose; it is distinct from “synthetic” fibers made from chemical polymers. “Staple” means the fibers are short and spun into yarn, rather than continuous filaments.
The heading groups several kinds of qualifying yarn. To reach the specific eight-digit statistical reporting number, first confirm that the product belongs in heading 5510, then narrow it by the yarn’s construction or type—such as whether it is single, multiple or folded, or another covered construction—and by the applicable fiber or product description in the current HTS. Packaging and presentation also matter: yarn prepared for retail sale, or sewing thread, may be classified elsewhere. The complete product description, Chapter 55 notes, and the relevant subheading text control.
What to check
- Confirm the fiber is an artificial staple fiber, and distinguish it from synthetic staple fiber, natural fiber, and continuous filament yarn.
- Check whether the product is sewing thread and whether it is put up for retail sale; do not rely only on the seller’s marketing description.
- Identify the yarn construction, including whether it is single, multiple, folded, or another type specified by the subheadings.
- Review the current HTS Chapter 55 notes, heading text, and explanatory guidance before selecting the eight-digit number.
- Keep technical specifications, fiber-composition records, construction details, and packaging photographs; request a customs-broker review or binding ruling when the facts are unclear.
HTS heading 5510 summary
Yarn is a 4-digit product category containing 4 published product-code lines in this snapshot. A heading does not carry one universal duty rate; classification must be narrowed to the line matching the product facts.
How to find your code in this category
A heading is a product category. To get the exact duty, narrow from this 4-digit heading to a sub-category (usually by material), then open the 8-digit code that matches your product.
Open any code in the tables below to see its exact duty rate, a duty calculator (enter your shipment value → estimated duty and landed cost), the rate-change history chart, and the country-by-country breakdown (including Section 301/232 add-on duties).
Why you have to click in: a single category can contain products with very different duties. The rate depends on the specific product — its material and construction — and on the country of origin, and those only get pinned down at the 8-digit code level. That is why this page points you to codes instead of showing one rate for the whole category.
Sub-categories
| Code | Description |
|---|---|
| 5510.90 | Other yarn |
Product codes & duty rates
👇 Each row is a specific product code — click a blue code to open its full page with exact duty rates by country, the rate-history chart, and a duty calculator. 👉
| Code | Description | General (MFN) | Special | Column 2 |
|---|---|---|---|---|
| 5510.11.00.00 👉 | Single yarn (603) | 9% | Free | 54% |
| 5510.12.00.00 👉 | Multiple (folded) or cabled yarn (603) | 10.6% | Free | 61.5% |
| 5510.20.00.00 👉 | Other yarn, mixed mainly or solely with wool or fine animal hair (607) | 10.2% | Free | 81% |
| 5510.30.00.00 👉 | Other yarn, mixed mainly or solely with cotton (607) | 7.5% | Free | 81% |
"Special" shows the free-trade-agreement rate; open a code to see exactly which countries qualify.
Common questions
What products fall under HTS heading 5510?
Yarn (other than sewing thread) of artificial staple fibers, not put up for retail sale. To classify a specific item you must pick the matching sub-category and 8-digit code above; the right choice usually depends on the material and construction of the product.
How do I choose the right code within this category?
Start from the sub-categories (typically divided by material—for example cotton versus man-made fibers), then open the active 8- or 10-digit code that matches the product. When unsure, a licensed customs broker or a CBP binding ruling can confirm the classification.
Reference information only, not customs, legal, or classification advice. Confirm the current code and rate against the official HTS before you import.