Heading 5503: Synthetic staple fibers, not carded, combed or otherwise processed for spinning
Every line of heading 5503 in the U.S. Harmonized Tariff Schedule, with its general (column 1) duty rate. Open a code for the landed cost calculator, trade agreement rates and email alerts if the rate changes.
Synthetic staple fibers, not carded, combed or otherwise processed for spinning
Chapter 55: Man-made staple fibers. Schedule checked on November 8, 2026.
Not always the total: additional chapter 99 duties (such as Section 232 or Section 301), antidumping or countervailing duties may apply depending on the country of origin. See recent chapter 99 changes →
Tariff lines
| HTS code | Official description | General rate |
|---|---|---|
| 5503.11.00.00 | Of aramids | 4.3% |
| 5503.19 | Other: | |
| 5503.19.10.00 | Containing 10 percent or more by weight of nylon 12 | Free |
| 5503.19.90.00 | Other | 4.3% |
| 5503.20.00 | Of polyesters | 4.3% |
| 5503.20.00.15 | Bi-component fibers having an outer copolymer sheath that melts at a lower temperature than the core, of a kind used for bonding fibers together | |
| 5503.20.00.25 | Measuring less than 3.3 decitex | |
| 5503.20.00.45 | Measuring 3.3 decitex or more but less than 13.2 decitex | |
| 5503.20.00.65 | Measuring 13.2 decitex or more | |
| 5503.30.00.00 | Acrylic or modacrylic | 4.3% |
| 5503.40.00.00 | Of polypropylene | 4.3% |
| 5503.90 | Other: | |
| 5503.90.10.00 | Of vinyon | Free |
| 5503.90.90.00 | Other | 4.3% |
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Exporting this product from the U.S.?
Exports are reported with Schedule B numbers. Heading 5503 has 6 of them. Schedule B lookup →
- 5503.11.0000SYNTHETIC STAPLE FIBERS, NOT CARDED, COMBED OR OTHERWISE PROCESSED FOR SPINNING: OF ARAMIDS
- 5503.19.0000SYNTHETIC STAPLE FIBERS NOT CARDED, COMBED OR OTHERWISE PROCESSED FOR SPINNING: OF NYLON OR OTHER POLYAMIDES
- 5503.20.0000SYNTHETIC STAPLE FIBERS NOT CARDED, COMBED OR OTHERWISE PROCESSED FOR SPINNING: OF POLYESTER
- 5503.30.0000SYNTHETIC STAPLE FIBERS NOT CARDED, COMBED OR OTHERWISE PROCESSED FOR SPINNING: ACRYLIC OR MODACRYLIC
- 5503.40.0000SYNTHETIC STAPLE FIBERS NOT CARDED, COMBED OR OTHERWISE PROCESSED FOR SPINNING: OF POLYPROPYLENE
- 5503.90.0000SYNTHETIC STAPLE FIBERS NOT CARDED, COMBED OR OTHERWISE PROCESSED FOR SPINNING: NESOI
Source: U.S. International Trade Commission, Harmonized Tariff Schedule; Schedule B: U.S. Census Bureau. Information only, not legal or customs advice; U.S. Customs and Border Protection decides the classification and the duty. Confirm with a licensed customs broker before you ship.
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