5501
4-digit headingSynthetic filament tow
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 Synthetic filament tow
8 more specific lines fall under 5501.
- 5501.11.00.00Of aramids10-digit statistical codeSynthetic filament tow: > Of nylon or other polyamides:7.5%
- 5501.19.00.00Other10-digit statistical codeSynthetic filament tow: > Of nylon or other polyamides:7.5%
- 5501.20.00.00Of polyesters10-digit statistical codeSynthetic filament tow:7.5%
- 5501.30.00Acrylic or modacrylic8-digit subheadingSynthetic filament tow:7.5%
- 5501.30.00.10Containing 92 percent or more by weight of acrylonitrile units with filaments numbering fewer than 70,000 (+/-2000) with filament diameter 1.59 decitex (plus or minus 0.027) or less, or in a separable tow construction capable of being separated into tows of 70,000 (+/-2000) or fewer with filament diameter 1.59 decitex (plus or minus 0.027) or less.10-digit statistical codeSynthetic filament tow: > Acrylic or modacrylic
- 5501.30.00.90Other10-digit statistical codeSynthetic filament tow: > Acrylic or modacrylic
- 5501.40.00.00Of polypropylene10-digit statistical codeSynthetic filament tow:7.5%
- 5501.90.01.00Other10-digit statistical codeSynthetic filament tow:7.5%
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.
Data loaded August 18, 2026.Check this chapter on hts.usitc.govReport an error with this codeHow this data is built