NSF 51 & 61 Sealing Solutions

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NSF 51 & 61 Certified Seal Products for Food and Water Systems

North Coast Seal provides a complete range of NSF/ANSI 51 and 61 certified O-rings, gaskets, seals, and custom molded rubber components for use in food equipment and potable water systems.

NSF certification confirms that your components meet strict public health standards for safety in commercial food and drinking water applications. Our compounds are available in a variety of sizes and formats to suit a wide range of equipment needs.

With our dual NSF 51 & 61 certification, you can simplify compliance and ensure your products are safe for both food contact and drinking water exposure—all in a single, verified material solution.

NSF/ANSI 51 - Food Equipment Certification

NSF/ANSI 51 is one of the most widely recognized certifications in the commercial food equipment industry. It applies to both materials and surface finishes used in products like:

  • Beverage dispensers
  • Broilers
  • Cutting boards
  • Sealants, gaskets, valves, tubing, and more

To qualify, each component must meet health and safety requirements specific to its function in foodservice equipment.

Why is it important? NSF 51 certification increases market access, ensures compliance with local health departments, and helps food equipment gain instant regulatory acceptance in North America and internationally.

NSF/ANSI 61 - Drinking Water System Components

NSF/ANSI 61 is required for any product that touches drinking water during treatment or distribution in North America. It sets contaminant limits and evaluates whether materials leach harmful substances into water.

This certification applies to:

  • Protective coatings and barrier materials
  • Sealing materials (gaskets, lubricants)
  • Valves, filters, water meters
  • Pipes, hoses, and fittings
  • Filter media and ion exchange resins
  • Non-metallic potable water materials

With NSF/ANSI 61, your product demonstrates compliance with health-based standards in the U.S. and Canada, and may also meet international testing requirements.

NSF 51 & 61 Dual Certification

When your product needs to meet both food-contact and potable water safety requirements, North Coast Seal’s dual-certified rubber compounds provide a single solution.

Our NSF 51 & 61 dual certification means:

  • Simplified sourcing
  • Fewer components to manage
  • Verified safety and compliance across both applications

We’re proud to help manufacturers maintain trust and safety in every step of the production process.

Frequently Asked Questions About NSF 51 & 61 Seals

What is the difference between NSF 51 and NSF 61?

  • NSF 51 applies to food equipment components, ensuring they are safe for contact with food
  • NSF 61 applies to drinking water system components, verifying materials won’t contaminate potable water

 

Do I need both certifications for my application?

If your product touches both food and water—or operates in systems that do—dual certification simplifies compliance and may reduce the need for multiple materials or vendors.

 

What types of seals can be NSF certified?

NSF 51 and 61 can apply to O-rings, gaskets, molded seals, tubing, and other rubber components used in commercial food equipment or water handling systems.

 

What are the benefits of NSF certification?

Certification ensures regulatory acceptance, improves product marketability, and helps your customers trust the safety of your product. It may also fulfill international testing requirements.

 

Can North Coast Seal customize a dual-certified solution for my equipment?

Yes. We work with manufacturers to match form, fit, and function while using compounds that carry both NSF 51 and 61 certification.

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