TradeTools

HS-6 · Subheading

540331

Yarn, artificial; filament, monofilament (less than 67 decitex), of viscose rayon (not high tenacity), single, untwisted or twisted 120 turns per metre or less, not for retail sale, not sewing thread

Heading 5403Artificial filament yarn (other than sewing thread), not put up for retail sale, including artificial monofilament of less than 67 decitex

Chapter 54: Man-made filaments

Plain-language overview

Use HS-6 540331 when importing or exporting single, untwisted or twisted filament yarn made of viscose rayon, specifically those with less than 67 decitex. For instance, if you're shipping rolls of untwisted viscose rayon yarn for textile manufacturing, this is the correct code.

This code is distinct from HS-6 540332, which covers high tenacity filament yarns. If your product has a higher strength or is classified differently, you’ll need to use that code instead. Understanding the difference is crucial for proper customs clearance.

The 540331 classification includes yarns that are not intended for retail sale and are not sewing threads. This means they are typically sold in bulk to manufacturers rather than directly to consumers, which is a key factor in determining the correct HS code.

When classifying your product, consider whether the yarn is twisted beyond 120 turns per meter. If it exceeds this limit, it may fall under a different subheading, impacting your import/export documentation.

Keywords & topics

Useful terms traders and brokers use for this HS-6 subheading.

artificial filament yarn · viscose rayon yarn · untwisted yarn · twisted filament yarn · not for retail sale · bulk yarn shipments · textile manufacturing yarn · yarn classification · HS code 540331 · monofilament yarn · decitex measurement · industrial yarn supply

Examples

Drawn from the official tariff wording for this HS-6 subheading. Always confirm against your published schedule and legal notes.

  • Rolls of untwisted viscose rayon yarn for textile production
  • Bulk shipments of twisted filament yarn under 67 decitex
  • Yarn used for weaving fabrics in the garment industry
  • Non-retail packaged filament yarn for industrial applications
  • Viscose rayon yarn supplied to manufacturers for upholstery
  • Untwisted filament yarn used in knitting machines
  • Yarn sold in large spools for carpet manufacturing

Common questions

Frequent classification questions with short practical guidance.

What is HS code 540331 used for?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

How to classify viscose rayon yarn?

Write down material, use, and product form first, then compare nearby lines before you lock the code.

Is untwisted yarn covered under HS 540331?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

What are the specifications for HS 540331?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

Differences between HS 540331 and HS 540332?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

Can I use HS 540331 for retail yarn sales?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

What does less than 67 decitex mean?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

How to determine the right HS code for filament yarn?

Match the product to the legal wording, then verify the final pick in your country tariff schedule before filing.

Related topics

Common real-world topics that come up during code comparison.

How to classify artificial filament yarn for customs

Check the exact product specs and destination-country tariff notes before finalizing the code.

What products fall under HS code 540331

Use this topic to narrow your shortlist, then validate the final code against legal wording.

Understanding the specifications of HS 540331

Use this topic to narrow your shortlist, then validate the final code against legal wording.

Is twisted yarn classified differently than untwisted yarn?

Use this topic to narrow your shortlist, then validate the final code against legal wording.

What is the significance of decitex in yarn classification?

Use this topic to narrow your shortlist, then validate the final code against legal wording.

Guidelines for importing viscose rayon filament yarn

Check the exact product specs and destination-country tariff notes before finalizing the code.

How to ensure compliance with HS code regulations

Use this as a checklist topic, then confirm legal requirements with your broker or customs advisor.

Best practices for classifying non-retail yarn shipments

Use this topic to narrow your shortlist, then validate the final code against legal wording.

Questions & answers

For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.

What types of yarn are classified under HS 540331?
HS 540331 covers single, untwisted or twisted filament yarn made of viscose rayon, specifically those with less than 67 decitex that are not for retail sale.
Can I use HS 540331 for high tenacity yarns?
No, high tenacity yarns fall under HS 540332. Ensure you classify your product correctly based on its strength.
What does 'not for retail sale' mean in this context?
'Not for retail sale' indicates that the yarn is sold in bulk to manufacturers rather than directly to consumers, which affects the HS classification.
How do I measure decitex for my yarn?
Decitex is measured by the weight in grams of 10,000 meters of yarn. For HS 540331, it must be less than 67 decitex.
What if my yarn has more than 120 twists per meter?
If your yarn exceeds 120 twists per meter, it may not qualify under HS 540331 and could require a different classification.
Are there any specific packaging requirements for HS 540331?
While there are no specific packaging requirements for HS 540331, ensure your shipment is clearly labeled and documented to avoid customs issues.
Can I use HS 540331 for sewing thread?
No, HS 540331 specifically excludes sewing thread. You will need to classify sewing threads under a different HS code.

Continue classification

Parent context

Next best action

Pick one of these actions to move from reading to a defensible classification decision.

Browse this subheading in the lookup

← HS-4 5403