U.S. exports of Nylon & Polyamide Staple Fibers, Carded, Combed or Processed for Spinning (HS 550610) totaled $1.0M in August 2026.
Importers of Nylon & Polyamide Staple Fibers, Carded, Combed or Processed for Spinning paid $27K in duties in August 2026, an average duty rate of 42.50% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Nylon & Polyamide Staple Fibers, Carded, Combed or Processed for Spinning imports of $64K in August 2026 ran 25% above the year-to-date monthly average of $51K.
Last updated: August 2026 dataNylon and other polyamide staple fibers that have been carded, combed, or otherwise prepared for spinning enter under a single US tariff line (5506100000), distinguishing them from unprocessed polyamide fibers in heading 5503. The carding or combing step aligns fibers for direct use in ring or open-end spinning systems, making this a more value-added intermediate than raw staple. Taiwan leads US supply, with China and Austria also among the notable sources.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1 import shipments a month
A polyamide staple fiber classifies under heading 5503 when it is in raw, unprocessed bulk form — not carded, combed, or otherwise prepared for spinning. Once it undergoes carding (aligning fibers into a web), combing (removing short fibers and further aligning), or equivalent mechanical processing that prepares it for direct spinning, it moves to heading 5506. The supplier's processing documentation or a technical description of the fiber's state at time of export is the key evidence for this distinction.
Nylon staple fibers from certain origins have historically attracted antidumping scrutiny in global markets, and importers sourcing from China should verify current CBP and USTR guidance for any applicable Section 301 measures on textile intermediates. Taiwan, as the leading US supplier, does not currently benefit from a US free trade agreement, so standard MFN duty rates apply. Consulting a licensed customs broker before placing orders from new origins is advisable given the evolving trade remedy landscape for synthetic fiber inputs.
Subheading 1 of 5 in heading 5506
Subheading 550610 · $1.0M of $1.1M
Trade Directory
List your company under HS 550610 — Nylon & Polyamide Staple Fibers, Carded, Combed or Processed for Spinning, so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 5506100000 | Syn Stp Fib Crd Cmb or Prs Spng Nyl or Oth Plyamd | $64K | 42.50% | 100.00% | $27K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 5506100000 | Syn Stp Fib Crd Cmb or Prs Spng Nyl or Oth Plyamd | $1.0M |
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
$64KYoY · free account
Exports
$1.0MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $842K of Nylon & Polyamide Staple Fibers, Carded, Combed or Processed for Spinning and exported $7.8M.
Through August 2026. Source: U.S. Census Bureau.
Exports · August 2026
destination
Netherlands and China together take 54% of it.
customs district
origin
entry
rate provision · imports
duty collected equals 42.50% of imports for consumption.