Product classification
HS code for Nylon filament yarn: 5402.45
Yarn, synthetic, filament, monofilament (less than 67 decitex), of nylon or other polymides (not high tenacity or textured), single, untwisted or twisted 50 turns or less per metre, not for retail sale, not sewing thread.
Classification of nylon filament yarn under HS 5402.45
HS code 5402.45 covers synthetic filament yarn of nylon or other polyamides. Chapter 54 deals with man-made filaments, and heading 5402 is for synthetic filament yarn (other than sewing thread), not put up for retail sale. Subheading 5402.45 specifically identifies single yarn, untwisted or with a twist not exceeding 50 turns per meter, made of nylon or other polyamides. This classification is highly technical, requiring the yarn to be "non-textured" and not "high tenacity." The "not for retail sale" provision usually means the yarn is imported in large industrial packages (cones or beams) intended for further manufacturing into fabrics, hosiery, or industrial goods. The yarn must consist of filaments that are continuous and of a thickness less than 67 decitex. This code is vital for the textile industry, particularly for manufacturers of lightweight fabrics and hosiery where smooth, untwisted nylon filaments are required.
- Covers
- Nylon 6 or Nylon 6,6 monofilament (< 67 decitex)
- Partially Oriented Yarn (POY) of nylon, untwisted
- Fully Drawn Yarn (FDY) of nylon, non-textured
- Single polyamide filament yarn for industrial weaving
- Untwisted nylon yarn on industrial beams
- Also under 5402.45
- Invista CORDURA (fine denier versions)
- Toray Nylon Yarn
- Hyosung Nylon Yarn
- BASF Ultramid (as yarn)
- Ascend Performance Materials Nylon
Codes often confused with 5402.45
Common mistake. This code is frequently confused with 5402.31, which covers textured nylon yarn (yarn that has been twisted, crimped, or air-entangled to add bulk). It is also distinct from 5402.11, which is reserved for high-tenacity yarn used in industrial applications like tire cords. If the yarn is put up for retail sale (e.g., small spools for home use), it moves to heading 5406. Finally, if the filament exceeds 67 decitex and has a cross-sectional dimension exceeding 1mm, it is classified as monofilament under heading 5404.
Top exporters and importers of HS 540245 (the code used for nylon filament yarn), 2025
In 2025, the largest exporter of HS 540245 (the code used for nylon filament yarn) in UN Comtrade data was China, with 38% of world exports; the largest importer in UN Comtrade data was India, with 16% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 540245, not only nylon filament yarn.
Top exporters 2025 · share of world exports
- 1 China $328M 38% of world exports
- 2 Vietnam* ~$115M 13% of world exports · partner records ↗
- 3 Italy $83M 9.6% of world exports
World total: $859M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 India $152M 16% of world imports
- 2 South Korea $90M 9.6% of world imports
- 3 Italy $69M 7.4% of world imports
World total: $936M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM codes for nylon filament yarn
Brazil splits HS 5402.45 into 3 NCM codes. Pick the one that matches your product:
- 5402.45.10Aramid single yarn, max 50 turns/m
- 5402.45.20Nylon single yarn, max 50 turns/m
- 5402.45.90Other polyamide single yarn, max 50 turns/m
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about nylon filament yarn
What is the HS code for Nylon filament yarn?
The HS code for Nylon filament yarn is 540245 (Yarn, synthetic; filament, monofilament (less than 67 decitex), of nylon or other polymides (not high tenacity or textured), single, untwisted or twisted 50 turns or less per metre, not for retail sale, not sewing thread). The HS code for single, untwisted nylon filament yarn (not for retail sale) is 5402.45.
How do I classify Nylon filament yarn for customs?
Nylon filament yarn is classified under HS code 540245 — Yarn, synthetic; filament, monofilament (less than 67 decitex), of nylon or other polymides (not high tenacity or textured), single, untwisted or twisted 50 turns or less per metre, not for retail sale, not sewing thread. This is a 6-digit subheading level code.
Is nylon sewing thread classified here?
No, nylon sewing thread is classified under heading 5401, regardless of whether it is for retail or industrial use.
Which countries are the top exporters of nylon filament yarn (HS 540245)?
In 2025, the top exporters of HS 540245 (the code used for nylon filament yarn) in UN Comtrade data were China ($328M, 38% of world exports), Vietnam (about $115M) and Italy ($83M). World exports came to about $859M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of nylon filament yarn (HS 540245)?
In 2025, the top importers of HS 540245 (the code used for nylon filament yarn) in UN Comtrade data were India ($152M, 16% of world imports), South Korea ($90M) and Italy ($69M). World imports came to about $936M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Nylon filament yarn the same in all countries?
The base HS code 540245 for Nylon filament yarn is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for nylon filament yarn in Brazil?
Brazil splits HS 540245 into 3 NCM codes, so the right one for nylon filament yarn depends on the product's details: 5402.45.10 (Aramid single yarn, max 50 turns/m), 5402.45.20 (Nylon single yarn, max 50 turns/m), 5402.45.90 (Other polyamide single yarn, max 50 turns/m).