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HSChapter 55
U.S. imports of synthetic filament tow of nylon or other polyamides (except aramids) (HS 550119) totaled $307 in April 2026, traded with 4 countries.
Synthetic Filament Tow of Nylon or Other Polyamides (Except Aramids) imports of $307 in April 2026 ran 91% below the year-to-date monthly average of $3K.
Last updated: April 2026 dataNylon and non-aramid polyamide filament tow serves as a key intermediate in the production of staple fibers, nonwovens, and engineered textiles for automotive, apparel, and industrial filtration markets. China is the dominant supplier to the US under this heading, with France and Taiwan also contributing meaningfully. The single tariff line 5501190000 captures all non-aramid polyamide tow not elsewhere specified, so correct fiber-type documentation is essential to avoid misclassification with the aramid subheading.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
A manufacturer's fiber specification sheet or mill certificate identifying the polymer type (e.g., nylon 6 or nylon 6,6 versus para- or meta-aramid) is the most reliable supporting document. CBP may request this to confirm correct classification under 5501190000 versus the aramid subheading 5501110000.
Automotive airbag fabric, industrial filtration media, and cut-resistant workwear are among the primary downstream applications. Demand from these sectors can create seasonal or model-year-driven import surges that affect lead times and pricing.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| UNITED KINGDOM | -- | $143K | +$143K |
| MEXICO | -- | $4K | +$4K |
| CHINA | $307 | -- | -$307 |
| FRANCE | -- | -- | -- |
| TAIWAN | -- | -- | -- |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 5501190000 | SYNTH FILAMENT TOW OF NYLON/OTHER POLYAMIDES NESOI | $307 | 42.35% | $130 |
SYNTH FILAMENT TOW OF NYLON/OTHER POLYAMIDES NESOI
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 5501190000 | SYNTH FILAMENT TOW OF NYLON/OTHER POLYAMIDES NESOI | $148K |
SYNTH FILAMENT TOW OF NYLON/OTHER POLYAMIDES NESOI
29.7K kg
SYN STP FIB NT CRD, CMB OR PRSD SPNG, OF POLYESTER
HS 550320
ARTIF STP FIB NT CRD, CMB OR PRSD SPNG, VIS RAYON
HS 550410
YRN N SW TH MM ST FIB RT SL SYN STP FIB >=85% S FB
HS 551110
STPL FIB ARAMIDS NOT CARD/COMBD/PRCSD FOR SPINNING
HS 550311
SYN STP FIB NT CRD, CMB OR PRSD SPNG, ACRY/MODACRY
HS 550330
SYN STP FIB NOT CARD, CMB OR PRSD SPNG, NESOI
HS 550390
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NORFOLK-NEWPORT NEWS, VA | -- | $143K | +$143K |
| ROMA, TX | -- | $4K | +$4K |
| CHICAGO, IL | $307 | -- | -$307 |