Artificial filament yarn — HTS 5403
Artificial filament yarn (other than sewing thread), not put up for retail sale, including artificial monofilament of less than 67 decitex
Chapter 54 › Heading 5403
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 5403 is a four-digit product category for certain artificial filament yarns. It generally covers yarn made from man-made fibers, other than sewing thread, that is not packaged or presented for retail sale. It also includes artificial monofilament below the stated fineness threshold. “Artificial” usually refers to fibers made from regenerated or reconstituted natural polymers, such as cellulose-based materials, rather than synthetic polymers.
The heading is only the starting point, not the final tariff classification. To reach the correct eight-digit HTSUS code, first confirm that the product belongs in heading 5403, then use the subheadings and statistical subdivisions to narrow it by characteristics such as the fiber material, whether the yarn is single or multiple, its construction or processing, and other listed product distinctions. Review the current HTSUS wording and any applicable section, chapter, and heading notes; classification may require a customs broker or binding ruling when the product’s composition or construction is unclear.
What to check
- Confirm the yarn is artificial rather than synthetic, and document the polymer or fiber material used.
- Verify that it is filament yarn, not sewing thread, staple-fiber yarn, or another textile product.
- Check whether the product is put up for retail sale and whether any monofilament meets the specified fineness condition.
- Record yarn construction details, including single or multiple yarn, twists, texturing, coating, and other processing described by the HTSUS.
- Compare the product specifications with the exact eight-digit subheading text and seek customs-broker advice if material or construction details do not fit one option clearly.
HTS heading 5403 summary
Artificial filament yarn is a 4-digit product category containing 0 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 |
|---|---|
| 5403.10 | High tenacity yarn of viscose rayon |
Common questions
What products fall under HTS heading 5403?
Artificial filament yarn (other than sewing thread), not put up for retail sale, including artificial monofilament of less than 67 decitex. 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.