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Metric O-Rings Manufacturers and Suppliers

IQS Directory provides an extensive list of metric o-ring manufacturers and suppliers. Utilize our website to review and source metric o-ring manufactures with our easy-to-use features which allow you to locate metric o-ring companies that will design, engineer, and manufacture metric o-rings for your exact specifications. Our request for quote forms make it easy to connect with leading metric o-ring manufacturers. View company profiles, website links, locations, phone number, product videos, customer reviews, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for plastic circular o-rings, rubber o-ring components, or metric o-ring measurements.

  • Sparta, NJ 973-383-2487

    A leading o-ring manufacturer of quality metric seals for industries worldwide, defines Allied Metrics Seals & Fasteners. We offer FDA-approved elastomers, Teflon® seals, o-rings & much more. Choose from o-ring sizes, metal & plastic o-rings, o-ring kits, o-ring seals, silicone o-rings, EPDM o-rings, static o-rings, etc. We are an ISO 9001:2015 certified company. Call/visit our website for more information about our products & services!

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  • Lawrenceville, GA 877-432-3627

    Since 1973, Daemar USA has been producing the best-quality hydraulic seals and o-rings on the market. We offer a wide variety of o-rings, including silicone, Teflon, EPDM, HSN-80, back-up, and Aflas o-rings. We also offer o-ring cord, quad rings, and o-ring packs. Our seal collection includes oil seals, axle seals, JM clipper seals, end caps, Teflon Energized seals, v-rings, and more. We are an ISO 9001 certified company, and we are eager to help you find the o-rings and seals that you need!

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  • Santa Fe Springs, CA 562-941-4800

    RD Rubber Technology Corp is an ISO 9001:2015 / AS9100:2016 certified and ITAR registered company. We offer compression, transfer, injection and Liquid Injection molding, rubber to metal bonding, engineering support, tooling design, machining and more. Our customers rely on us to give them the best possible production o-rings. From aerospace to medical, food processing to military applications we build trust by being responsive to your needs.

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  • Grand Rapids, MI 616-538-4970

    Kent Rubber Supply has been a trusted supplier of o-rings since 1946. Focusing in exceeding customer service, we leverage the best equipment and the most knowledge staff to ensure we meet our customers unique needs. With our trusted experts, we determine the best rubber, foam, sponge or PVC material for your specific need. We continue serving customers both offshore and domestic.

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  • Lancaster, NY 716-684-7600

    Sealing Devices is a leading North American distributor & fabricator of o-rings, gaskets, seals, adhesives and EMI shielding for industrial, aerospace, medical and military applications. Our products can be from our stock inventory or custom made to fit your specific application. We look forward to working with you and finding solutions to your sealing needs. Visit our website today!

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  • Littleton, MA 800-882-3666

    As the largest in-house pure gum inventory carrier in the U.S., Atlantic Rubber Company has cost-effective and resilient rubber tubing. Materials we carry for all your rubber tubing needs are: latex, silicone, pure gum and o-rings. Our natural rubber tubing is cold temperature and abrasion resistant. We are proudly ISO 9001 certified. Contact us today for more information.

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  • More Metric O-Rings Companies

businessIndustry Information

Metric O-Rings

An o-ring is a circular component that is made from either rubber or plastic, and is used for the purpose of sealing off part of a piece of equipment, similar to a gasket. O-rings can come in various configurations depending on the application or industry. Metric o-rings, in particular, are a type of o-ring whose thickness is measured using the metric system. This makes them compatible with equipment made in countries that use the metric system for measurement. Therefore, most manufacturers of o-rings offer models measured with both the Imperial and metric systems.

The primary function of an o-ring is a sealant. During the assembly of a machine, an o-ring is placed between two or more parts in order to prevent liquids or gases from passing through when the machine or system is in use. When an o-ring is used as a sealant between a set of tubes or pipes, it is known as an o-ring seal. O-rings are one of the most valuable types of sealants currently available and one of the most crucial components for machine design, because their flexible structures allow manufacturers to adjust them so they can precisely fit the measurements of the desired piece of equipment. Flat o-rings and large o-rings are primarily used for more specialized machines, so they are often customized. Since most of the world utilize the metric system, customizable metric o-rings give American manufacturers the ability to significantly broaden their market.

O-rings are used for numerous applications, including hydraulic valves, pumps, and pneumatic systems. Industries that use o-rings in their facilities include water treatment, chemical processing, oil refineries, aviation, and aerospace. Many manufacturers provide o-ring kits, which is a group of o-rings of assorted types and sizes, to accommodate for industries that utilize various types of machinery. O-rings are made from materials that allow them to be used for a wide range of industries and applications. Rubber and elastomer materials include Viton, Teflon, and silicone. O-rings can also be made from metals such as gold, steel alloys, nickel, aluminum, copper, and silver. In some varieties of o-rings, metal alloys or plastic alloys are used as fillers for o-rings that are rubber or plastic based. When o-rings have multiple layers of various materials (such as a plastic o-ring with a metal filler), the levels of strength and corrosion resistance can greatly increase. In addition, plastic o-rings with a metal filler can assist in sparks or electrical arching. The material of the o-ring depends largely on the cost, the size, lubrication requirements, temperature, chemical compatibility, and the sealing pressure of the machinery. O-rings can vary greatly in price due to how many materials from which they can be made.

Each material that is used to make an o-ring is recommended for particular applications. Teflon and Viton o-rings are valued for their resistance to the elements, high temperatures and various chemicals, and are thus used in numerous outdoor applications. Silicone o-rings are commonly used in the medical field and in hot air applications because of their thermal stability. Metal o-rings are much more resistant to corrosion, pressure, and extreme temperatures than those made from elastomers, and are thus used for sealing applications as well as numerous other industrial purposes.

In addition to material, another important factor to keep in mind when searching for the right o-rings is quality. It is imperative to select the highest possible quality because of how important of a role o-rings play in the assembly of a machine. If an o-ring is of poor quality, it will be unable to withstand prolonged intense use and will wear down much more quickly. In some cases, such as in the aerospace and aviation industry, faulty o-rings can cause important equipment to fail and significantly endanger those who are involved in operating them. The Challenger disaster of 1986 was caused by a gas leak, because a rubber o-ring became rigid and failed to expand due to unseasonably cold outside temperatures. Although the repercussions of using poor-quality o-rings do not always pose a safety risk to workers, poor quality o-rings can cause a multitude of other problems such as broken pipes, leaks, or flooding, leading to thousands of dollars in damage costs.

Fortunately, it is not difficult to identify a quality o-ring. Manufacturers of o-rings provide certifications or warranties on the products they offer. Furthermore, you can look for products that indicate that they are made in the USA, and are ISO certified. Doing extra research on the quality of the products will save you time and money long-term.


Metric O-Rings
Metric O-Rings
Metric O-Rings – Global O-Ring and Seal, LLC
Metric O-Rings – Arizona Sealing Devices, Inc.
Metric O-Rings
Metric O-Rings
Metric O-Rings – Continental International, Inc.
Metric O-Rings – Global O-Ring and Seal, LLC



Metric O-Rings Informational Video