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U.S. exports of woven fabrics of other synthetic staple fibers (not polyester, acrylic, or modacrylic), under 85%, mixed with manmade filaments (HS 551591) totaled $1.7M in July 2026.
Importers of Woven Fabrics of Other Synthetic Staple Fibers (Not Polyester, Acrylic, or Modacrylic), Under 85%, Mixed with Manmade Filaments paid $20K in duties in July 2026 — an effective duty rate of 25% on $80K in dutiable value, based on actual customs collections rather than the published tariff schedule. Woven Fabrics of Other Synthetic Staple Fibers (Not Polyester, Acrylic, or Modacrylic), Under 85%, Mixed with Manmade Filaments imports of $83K in July 2026 ran 42% below the year-to-date monthly average of $143K.
Last updated: July 2026 dataWoven fabrics built on synthetic staple fibers other than polyester, acrylic, or modacrylic — such as nylon or polypropylene staple — blended with manmade filaments at under 85% synthetic staple content occupy this specialized residual heading. The United Kingdom and India lead US imports here, with Italy and Turkey also supplying the market. Because the fiber type is neither the common polyester nor acrylic variants, precise fiber identification is especially important: laboratory analysis confirming both the staple fiber type and the filament secondary component is advisable before classification. Construction-type lines within the US schedule include poplin/broadcloth (5515910010), sheeting (5515910020), printcloth (5515910030), and satin/twill weaves (5515910040).
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
56 shipments/mo
This heading covers synthetic staple fibers that are not polyester, acrylic, or modacrylic — examples include nylon (polyamide), polypropylene, and other less common synthetic staple types. Because these fibers are less frequently traded, CBP may scrutinize fiber identification documentation more closely; a laboratory fiber analysis report identifying the specific polymer type is strongly recommended.
Yes — provided the primary fiber is a synthetic staple other than polyester, acrylic, or modacrylic, and the secondary component is a manmade filament (which could be polyester filament), the fabric classifies under 551591. The heading is defined by the staple fiber type, not the filament type. Documentation should clearly identify both fiber components and their respective forms (staple vs. filament).
HSChapter 55
Subheading 8 of 9 in heading 5515
Subheading 551591 · $83K of $8.2M
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 5515910090 | Oth Wov Fb Syn St Fb O Wov Fb M M/S Mnm Fl O NESOI | $119K | 22.13% | 100.00% | $26K |
| 5515910010 | Oth Wov Fab Syn St Fb Ot Wov Fab M M/S Mnm Fl Pp/B | $30K | 50.61% | 116.56% | $15K |
| 5515910040 | Oth Wov Fb Syn St Fb Ot Wov Fb M M/S Mnm Fl St/T W | $5K | 47.00% | 100.00% | $2K |
| 5515910020 | Oth Wov Fb Syn St Fb Ot Wov Fab M M/S Mnm Fl Shtng | $0 | -- | -- | -- |
| 5515910030 | Oth Wov Fb Syn St Fb Ot Wov Fab M M/S Mnm Fl Prtcl | $0 | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 5515910000 | Oth Wov Fab Syn Staple Fib Oth Mix M/S Mnm Filmnts | $2.6M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$83KYoY · Pro
Exports
$1.7MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
Canada and Vietnam together take 63% of it.
customs district
origin
entry
rate provision · imports
2.8% enters free of duty; the effective duty rate is 24.05%.