What is HS code 540231 used for?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
HS-6 · Subheading
Yarn, synthetic; filament, monofilament (less than 67 decitex), textured, of nylon or other polyamides, measuring per single yarn not more than 50 decitex, not for retail sale, not sewing thread
Heading 5402 — Synthetic filament yarn (other than sewing thread), not put up for retail sale, including synthetic monofilament of less than 67 decitex
Chapter 54: Man-made filaments
Use HS-6 540231 when importing or exporting textured synthetic monofilament yarns made of nylon or other polyamides, specifically those measuring no more than 50 decitex. For instance, if you're shipping rolls of nylon monofilament yarn used in industrial applications, this is the correct code.
This code applies to synthetic filament yarns that are not put up for retail sale. In contrast, HS-6 540232 covers similar textured yarns but specifically for those that exceed 50 decitex. Understanding the decitex measurement is crucial for proper classification.
The 540231 line is tailored for non-retail synthetic yarns, which means they are typically sold in bulk to manufacturers rather than individual consumers. If you are dealing with sewing threads, you would look to HS-6 540230, which is designated for sewing thread made from synthetic materials.
When classifying your product, ensure that it meets the specifications of being textured and made of nylon or other polyamides. This distinction is essential for compliance and avoiding misclassification penalties.
Useful terms traders and brokers use for this HS-6 subheading.
synthetic filament yarn · monofilament yarn · nylon yarn · polyamide yarn · textured yarn · non-retail yarn · industrial yarn · bulk yarn shipments · yarn classification · decitex measurement · synthetic yarn applications · yarn for upholstery · fishing line yarn · weaving yarn · textile reinforcement yarn
Drawn from the official tariff wording for this HS-6 subheading. Always confirm against your published schedule and legal notes.
Frequent classification questions with short practical guidance.
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Write down material, use, and product form first, then compare nearby lines before you lock the code.
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Common real-world topics that come up during code comparison.
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Use this as a checklist topic, then confirm legal requirements with your broker or customs advisor.
Check the exact product specs and destination-country tariff notes before finalizing the code.
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.
Check the exact product specs and destination-country tariff notes before finalizing the code.
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Use this topic to narrow your shortlist, then validate the final code against legal wording.
For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.
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