5509
4-digit headingYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale
This is a 4-digit heading — a category, not a filing code. Pick the more specific code beneath it that best matches your goods; only a 10-digit statistical code can be used on a customs entry.
Duty rates
No rate is published at this level — check the specific 10-digit statistical code beneath it.
| Rate | Value and what it means |
|---|---|
| General rate (Column 1) | See 10-digit codeColumn 1 general Applies to most trading partners — the standard "normal trade relations" rate. |
| Special rate (Column 1) | —Trade programs The country letters in parentheses are free trade agreement and preference programs. If your goods qualify under one of them, that rate replaces the general rate. |
| Column 2 rate | —Non-NTR Reserved for the small group of countries that do not have normal trade relations with the US (currently Cuba, North Korea, Russia and Belarus). Almost no importer uses this column — if you are shipping from anywhere else, ignore it. |
| Unit of quantity | — How CBP expects the quantity to be reported on the entry summary. |
Codes within Yarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale
34 more specific lines fall under 5509.
- 5509.11.00.00Single yarn (604)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Containing 85 percent or more by weight of staple fibers of nylon or other polyamides:9.4%
- 5509.12.00.00Multiple (folded) or cabled yarn (604)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Containing 85 percent or more by weight of staple fibers of nylon or other polyamides:10.6%
- 5509.21.00.00Single yarn (604)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Containing 85 percent or more by weight of polyester staple fibers:9.7%
- 5509.22.00Multiple (folded) or cabled yarn8-digit subheadingYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Containing 85 percent or more by weight of polyester staple fibers:10.6%
- 5509.22.00.10Multiple (folded), with a final "Z" twist (200)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Containing 85 percent or more by weight of polyester staple fibers: > Multiple (folded) or cabled yarn
- 5509.22.00.90Other (604)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Containing 85 percent or more by weight of polyester staple fibers: > Multiple (folded) or cabled yarn
- 5509.31.00.00Single yarn (604)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Containing 85 percent or more by weight of acrylic or modacrylic staple fibers:9%
- 5509.32.00.00Multiple (folded) or cabled yarn (604)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Containing 85 percent or more by weight of acrylic or modacrylic staple fibers:10%
- 5509.41.00Single yarn8-digit subheadingYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, containing 85 percent or more by weight of synthetic staple fibers:9%
- 5509.41.00.10Of polyvinyl alcohol (PVA) fibers (604)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, containing 85 percent or more by weight of synthetic staple fibers: > Single yarn
- 5509.41.00.90Other (604)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, containing 85 percent or more by weight of synthetic staple fibers: > Single yarn
- 5509.42.00Multiple (folded) or cabled yarn8-digit subheadingYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, containing 85 percent or more by weight of synthetic staple fibers:7%
- 5509.42.00.10Of polyvinyl alcohol (PVA) fibers (604)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, containing 85 percent or more by weight of synthetic staple fibers: > Multiple (folded) or cabled yarn
- 5509.42.00.90Other (604)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, containing 85 percent or more by weight of synthetic staple fibers: > Multiple (folded) or cabled yarn
- 5509.51Mixed mainly or solely with artificial staple fibers6-digit headingYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, of polyester staple fibers:
- 5509.51.30.00Single yarn (607)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, of polyester staple fibers: > Mixed mainly or solely with artificial staple fibers:9.7%
- 5509.51.60.00Multiple (folded) or cabled yarn (607)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, of polyester staple fibers: > Mixed mainly or solely with artificial staple fibers:10.6%
- 5509.52.00.00Mixed mainly or solely with wool or fine animal hair (607)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, of polyester staple fibers:12%
- 5509.53.00Mixed mainly or solely with cotton8-digit subheadingYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, of polyester staple fibers:13.2%
- 5509.53.00.30Not exceeding 52 nm (607)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, of polyester staple fibers: > Mixed mainly or solely with cotton
- 5509.53.00.60Exceeding 52 nm (607)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, of polyester staple fibers: > Mixed mainly or solely with cotton
- 5509.59.00.00Other (607)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, of polyester staple fibers:13.2%
- 5509.61.00.00Mixed mainly or solely with wool or fine animal hair (607)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, of acrylic or modacrylic staple fibers:13.2%
- 5509.62.00.00Mixed mainly or solely with cotton (607)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, of acrylic or modacrylic staple fibers:12%
- 5509.69Other6-digit headingYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, of acrylic or modacrylic staple fibers:
- 5509.69.20.00Single yarn (607)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, of acrylic or modacrylic staple fibers: > Other: > Mixed mainly or solely with artificial staple fibers:9%
- 5509.69.40.00Multiple (folded) or cabled yarn (607)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, of acrylic or modacrylic staple fibers: > Other: > Mixed mainly or solely with artificial staple fibers:10%
- 5509.69.60.00Other (607)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn, of acrylic or modacrylic staple fibers: > Other:13.2%
- 5509.91.00.00Mixed mainly or solely with wool or fine animal hair (607)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn:12%
- 5509.92.00.00Mixed mainly or solely with cotton (607)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn:7.5%
- 5509.99Other6-digit headingYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn:
- 5509.99.20.00Single yarn (607)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn: > Other: > Mixed mainly or solely with artificial staple fibers:9%
- 5509.99.40.00Multiple (folded) or cabled yarn (607)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn: > Other: > Mixed mainly or solely with artificial staple fibers:10.6%
- 5509.99.60.00Other (607)10-digit statistical codeYarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: > Other yarn: > Other:13.2%
Chapter 55: Man-Made Staple Fibers
Browse every code in this chapter to compare neighbouring classifications.
View Chapter 55Source: USITC Harmonized Tariff Schedule, 2026 Basic Edition, Revision 16. Rate text is reproduced verbatim from the official export; category paths and duty estimates are derived.
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