💾 Data Updated: Latest version • Last updated: December 09, 2025

5509 - Yarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale:

Sub-classifications

Commodity Code
Description

Overview

This HTS category, 5509, encompasses a broad range of yarns specifically manufactured from synthetic staple fibers. These yarns are intended for textile production and are not presented in final retail packaging, such as skeins or small balls for direct consumer use. The key defining characteristic is the material composition: the yarns must be made from staple fibers, meaning short, discontinuous lengths of synthetic material, rather than continuous filament. This distinction is crucial for classification, as yarns made from continuous synthetic filaments fall under different HTS headings.

In contrast to sibling categories that might cover live animals, for example, HTS 5509 exclusively deals with manufactured textile materials. Within the broader scope of Chapter 55, which addresses man-made staple fibers, this heading focuses on the processed form of these fibers into yarn. This differentiates it from headings that might cover the raw staple fibers themselves or finished textile articles.

The subcategories within 5509 provide further refinement based on the specific type of synthetic staple fiber and its proportion within the yarn. These subdivisions allow for precise classification based on whether the yarn contains a high percentage (85% or more) of specific synthetic fibers like nylon, polyester, or acrylic/modacrylic, or if it is an "other" yarn where synthetic staple fibers are still dominant but may be a blend or a different type. This detailed breakdown is essential for accurate duty assessment and trade statistics.

Frequently Asked Questions

›What is HTS code 5509?
HTS code 5509 covers Yarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: under the US Harmonized Tariff Schedule. It falls under Chapter 55: Man-made staple fibers.
›What products are classified under 5509?
This classification covers Yarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale:. It falls under Chapter 55: Man-made staple fibers.
›How many HTS codes are under 5509?
There are 7 direct subcategories under this classification.
›What are the subcategories under 5509?
This category contains 7 subcategories including: Containing 85 percent or more by weight of staple fibers of nylon or other polyamides:, Containing 85 percent or more by weight of polyester staple fibers:, Containing 85 percent or more by weight of acrylic or modacrylic staple fibers:, Other yarn, containing 85 percent or more by weight of synthetic staple fibers:, Other yarn, of polyester staple fibers:, and more. Browse the full list below.

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