NAICS 3131 - Fiber, Yarn, and Thread Mills

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NAICS Code Industry Title
31311 Fiber, Yarn, and Thread Mills
NAICS Code Industry Title
313110 Fiber, Yarn, and Thread Mills

What is NAICS 3131

NAICS code 3131 covers establishments primarily engaged in manufacturing fibers, yarns, and threads. This sector includes businesses that produce natural or synthetic fibers and transform them into yarns and threads used in various textile applications. Companies in this industry utilize specialized machinery to spin, twist, or otherwise process raw materials into intermediate products that serve as key inputs for apparel, upholstery, industrial fabrics, and other textile products. Government agencies contract with these manufacturers to secure reliable sources of high-quality yarns and threads necessary for defense, infrastructure, and public service applications. The sector supports diverse supply chains, emphasizing durability, custom specifications, and compliance with regulatory standards critical for public sector use.

Breakdown for NAICS 3131

  • Includes manufacturing of natural and synthetic fibers, yarns, and threads.
  • Focuses on producing intermediate textile products for further manufacturing.
  • Subject to specific quality and performance standards for government use.
  • Small to medium enterprises dominate the industry landscape.
  • Supports military, medical, and infrastructure textile supply chains.

Included Activities for NAICS 3131

  • Spinning raw fibers into yarns or threads.
  • Processing natural fibers such as cotton or wool.
  • Producing synthetic fibers like nylon and polyester yarns.
  • Twisting and texturizing yarns for specialized applications.
  • Packaging and distributing yarns and threads to government contractors.
  • Customizing yarn specifications for defense and industrial needs.
  • Maintaining compliance with federal textile standards.
  • Managing inventory and logistics for government supply contracts.

Business Types for NAICS 3131

  • Fiber and yarn manufacturing companies.
  • Thread mills specializing in industrial textiles.
  • Small and medium-sized textile producers.
  • Contract manufacturers for government textile supply.
  • Specialty synthetic fiber producers.
  • Custom textile component fabricators.

Government Buyers for NAICS 3131

Federal agencies such as the Department of Defense, the General Services Administration, and the Department of Veterans Affairs are primary purchasers of fiber, yarn, and thread products. These agencies require specialized textile components for military uniforms, medical supplies, and various government facility needs. State and local governments may also procure these materials for public safety uniforms, emergency response gear, and infrastructure projects. The demand stems from the need for consistent quality, durability, and performance in textiles used in critical government functions, ensuring operational readiness and compliance with safety standards.

Contract Types & Procurement for NAICS 3131

Contracts for NAICS 3131 typically include firm-fixed-price and indefinite-delivery/indefinite-quantity (IDIQ) agreements, enabling agencies to secure steady supplies while maintaining flexibility. Small business set-asides and competitive bidding processes are common procurement methods given the industry's composition. Contract values vary widely based on volume and specification complexity, ranging from small, single-order contracts for specialized threads to multi-million-dollar long-term supply agreements supporting large-scale government programs. Agencies emphasize contracts with clear quality standards, delivery schedules, and the ability to meet evolving technical requirements.

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