Chapter 55: Man-made staple fibers

HTS heading 5503: Synthetic staple fibers, not carded, combed or otherwise processed for spinning

15 numbered lines under heading 5503, including 11 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.

HTS heading 5503
HTS codeDescriptionUnitGeneralSpecialColumn 2
5503Synthetic staple fibers, not carded, combed or otherwise processed for spinning:
Of nylon or other polyamides:
5503.11.00.00Of aramidskg4.3%Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)25%
5503.19Other:
5503.19.10.00Containing 10 percent or more by weight of nylon 12kgFree25%
5503.19.90.00Otherkg4.3%Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)25%
5503.20.00Of polyestersNote: See 9903.55.01.4.3%Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)25%
5503.20.00.15Bi-component fibers having an outer copolymer sheath that melts at a lower temperature than the core, of a kind used for bonding fibers togetherkg
Other:
5503.20.00.25Measuring less than 3.3 decitexkg
5503.20.00.45Measuring 3.3 decitex or more but less than 13.2 decitexkg
5503.20.00.65Measuring 13.2 decitex or morekg
5503.30.00.00Acrylic or modacrylickg4.3%Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)25%
5503.40.00.00Of polypropylenekg4.3%Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)25%
5503.90Other:
5503.90.10.00Of vinyonkgFree25%
5503.90.90.00Otherkg4.3%Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)25%

Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.

Source: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.