3131 - Fiber, Yarn, and Thread Mills

When diving into the manufacturing sector, NAICS code 3131 stands out as a critical classification for companies involved in transforming raw fibers into yarns and threads. As a foundational step in textile production, these mills serve a vital role in supplying materials used across various industries. This blog uncovers everything you need to know about NAICS 3131 - Fiber, Yarn, and Thread Mills, providing insights aimed at manufacturers, business owners, and government contractors.

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What is NAICS Code 3131?

NAICS Code 3131 refers to the industry segment comprising establishments primarily engaged in spinning natural or synthetic fibers into yarn or thread. This includes processes that convert raw materials like cotton, wool, or synthetic filaments into versatile textile components used for further manufacturing, including fabric production and industrial applications.

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Sector: Manufacturing

NAICS 3131 is classified under the Manufacturing sector, which broadly encompasses industries involved in the mechanical, physical, or chemical transformation of materials into new products. Specifically, establishments under this code focus on:

• Spinning fibers into yarn or thread
• Producing both synthetic and natural fiber yarns
• Supplying products utilized in textiles, apparel, upholstery, and technical fabrics

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Typical Business Activities under NAICS 3131

Companies operating in this industry often include:

• Cotton yarn mills: Mills specializing in converting cotton fibers into yarn for apparel and textile uses.
• Wool yarn mills: Facilities spinning wool fibers, catering to clothing manufacturers and specialty textiles.
• Synthetic fiber yarn mills: Producers working with man-made fibers such as polyester, nylon, or acrylic to create yarns for various commercial applications.

Other activities might include blending fibers and preparing threads suited for sewing, weaving, or knitting processes.

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Size Standards for NAICS 3131

In government contracting and small business programs, eligibility is often determined by size standards. For NAICS 3131 - Fiber, Yarn, and Thread Mills, the Small Business Administration (SBA) size standard is typically:

• Maximum of 500 employees

Businesses with employee counts below this threshold generally qualify as small businesses under this NAICS code, enabling them to pursue certain government contracts and benefit from specific programs.

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Examples of Businesses Under NAICS 3131

Some examples of typical businesses engaged in activities falling under this code include:

• Sunny Cotton Yarn Co. – Specializes in high-quality cotton yarn production for apparel manufacturers.
• EverWool Textiles – Focuses on spinning wool fibers into versatile yarns.
• FiberTech Synthetics – Manufactures synthetic fiber yarns used in outdoor gear and industrial fabrics.

These companies exemplify the core functions addressed by NAICS code 3131.

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NAICS Code 3131: Key Details At a Glance

Attribute	Details
NAICS Code	3131
Industry Title	Fiber, Yarn, and Thread Mills
Sector	Manufacturing
Description	Establishments primarily engaged in spinning fibers into yarn or thread, including production of synthetic and natural fibers.
Typical Business Types	Cotton yarn mills, Wool yarn mills, Synthetic fiber yarn mills
Size Standard	Maximum 500 employees (SBA)

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Frequently Asked Questions (FAQ) about NAICS 3131

What types of fibers are processed under NAICS 3131?

NAICS 3131 includes spinning both natural fibers like cotton and wool, as well as synthetic fibers such as polyester, nylon, and acrylic.

Can synthetic fiber yarn mills qualify as small businesses?

Yes, if the company employs fewer than 500 employees, it qualifies as a small business under this NAICS code.

Which larger sector does NAICS 3131 belong to?

It is part of the Manufacturing sector, specifically focusing on textile materials processing.

How is yarn produced in these mills used?

Yarn produced is typically used in textile manufacturing, apparel production, upholstery, and other industrial applications requiring textile components.

Are fiber blending or thread production included in this industry?

Yes, establishments that blend fibers or produce threads as part of the yarn manufacturing process also fall within NAICS 3131.

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Conclusion

NAICS code 3131 - Fiber, Yarn, and Thread Mills represents a vital industry within the manufacturing sector focused on transforming raw fibers into essential textile materials. Whether natural or synthetic, these yarns and threads form the backbone of countless textile-related products. For businesses operating in this space, understanding the scope, size standards, and classification helps in navigating government contracts, market analysis, and strategic growth.

Leverage this knowledge to position your company effectively in textile manufacturing or to identify potential partners within the fiber and yarn production ecosystem.