HTS Heading 5503

Synthetic staple fibers, not carded, combed or otherwise processed for spinning

All 11 HTS codes under heading 5503 (synthetic staple fibers, not carded), with their duty rates from the 2026 HTS Revision 23. General duty Free to 4.3%.

Every line of heading 5503

  • 5503 Synthetic staple fibers, not carded, combed or otherwise processed for spinning.
  • 5503.11.00.00 Of aramids (under: Of nylon or other polyamides) (kg): General 4.3%; Special Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG); Column 2 25%.
  • 5503.19 Other (under: Of nylon or other polyamides).
  • 5503.19.10.00 Containing 10 percent or more by weight of nylon 12 (kg): General Free; Special none; Column 2 25%.
  • 5503.19.90.00 Other (under: Other) (kg): General 4.3%; Special Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG); Column 2 25%.
  • 5503.20.00 Of polyesters (under: Synthetic staple fibers, not carded, combed or otherwise processed for spinning): General 4.3%; Special Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG); Column 2 25%.
  • 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 (kg).
  • 5503.20.00.25 Measuring less than 3.3 decitex (kg).
  • 5503.20.00.45 Measuring 3.3 decitex or more but less than 13.2 decitex (kg).
  • 5503.20.00.65 Measuring 13.2 decitex or more (kg).
  • 5503.30.00.00 Acrylic or modacrylic (under: Synthetic staple fibers, not carded, combed or otherwise processed for spinning) (kg): General 4.3%; Special Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG); Column 2 25%.
  • 5503.40.00.00 Of polypropylene (under: Synthetic staple fibers, not carded, combed or otherwise processed for spinning) (kg): General 4.3%; Special Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG); Column 2 25%.
  • 5503.90 Other (under: Synthetic staple fibers, not carded, combed or otherwise processed for spinning).
  • 5503.90.10.00 Of vinyon (under: Other) (kg): General Free; Special none; Column 2 25%.
  • 5503.90.90.00 Other (under: Other) (kg): General 4.3%; Special Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG); Column 2 25%.

About these rates

The rates are those printed in the 2026 HTS Revision 23, published by the U.S. International Trade Commission. A 10-digit statistical line takes the rates printed on the 8-digit line above it. Chapter 99 duties (Section 232, Section 301, IEEPA) depend on the product, the origin and the date, are charged on top, and are not included. A code here is a strong lead, not a ruling: confirm it with a customs broker or a CBP binding ruling.

Last reviewed 2026-11-12.