Leading Metric O-Ring Manufacturers

A sub-type of the generally used O-rings, metric O-rings measure their thickness and diameter in metric units. They are compatible with products that use metric measurements, such as those from Europe or Japan. O-ring manufacturers and metric O-ring suppliers. Read More…

Metric O-Rings Metric O-Rings are small, circular plastic or rubber components named for their shape and the units they are measured by.

Since 1989, we have been an o-ring distributor. We offer commercial, FDA, military, metric o-rings, caps, plugs, gaskets & more. Custom, rubber o-rings, metal o-rings, diaphragms, face seals and non-standard o-rings are also offered.

Arizona Sealing Devices, Inc. $$$

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. Call/visit our website for more information about our products & services!

 Allied Metrics O-Rings & Seals, Inc. $$$

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 ...

RD Rubber Technology Corporation $$$

MSP Seals was founded in 1998 in Indianapolis, IN. Our company has been a major supplier of seals and various other materials, continually innovating and responding to the changing needs of our customers. We have introduced unique new products, o-rings, hydraulic/pneumatic packings, oil seals, and other types of seals, MSP Seals also supplies molded rubber shapes and lathe cut shapes.

MSP Seals $$$

At Seal Company, we pride ourselves on being a leading provider of high-quality O-rings and comprehensive sealing solutions tailored to meet the diverse needs of our valued customers. With decades of experience and a steadfast commitment to excellence, we have established ourselves as a trusted partner in the sealing industry. Our product portfolio encompasses a wide variety of O-rings, including ...

Seal Company $$$
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placeholder image Arizona Sealing Devices, Inc.  Allied Metrics O-Rings & Seals, Inc. RD Rubber Technology Corporation MSP Seals Seal Company

O-rings, including metric O-rings, are used as a seal, similar to a gasket. When one is pressed between two or more parts of a machine during its assembly, it will stop the passage of gases and liquids once the machine or system is being used. Therefore it is used as a sealant. When specifically used in this context, as a gasket between to pipes or tubes, it is called an o-ring seal.

Considered one of the simplest and most important sealants on the market, an o-ring's body can be adjusted to fit the precise measurements of a machine that requires it, making it vital to machine design. Flat o-rings and large o-rings are often customized in this fashion, since they are used for more specialized projects.

The metric measurements of metric o-rings also allows suppliers to open up their market beyond the US borders, since much of the world uses the metric system and requires customized or generalized o-rings to fit the measurement system of their products.

The many applications of O-rings include pneumatic systems, pumps, and hydraulic valves. Aerospace, aviation, oil refineries, chemical processing and water treatment facilities are all industries that utilize O-rings on a daily basis. O-Ring kits are also available to provide a variety of metric sized o-rings for industries that have products or systems of many sizes.

The substances used to shape o-rings were developed to respond to the needs of these various applications and industries. The rubber varieties include silicone, Viton and Teflon elastomers. Metal o-ring varieties include silver, copper, aluminum, nickel, steel alloys and gold. Often metal alloys will be used as fillers in rubber or plastic based o-rings while the same is true of plastic alloys in the metal o-rings.

What substance is used for an o-ring depends on the sealing pressure, lubricant requirements, cost and size of an application needs, and each type of material has different ups and downs. Chemical compatibility and application temperature are two other factors to consider when choosing the material for an o-ring.

Metric O-Rings Informational Video


O-Rings Power Pages



An O-ring is a round elastic loop that is used as a seal for static and dynamic applications. Their main purpose is to serve as a seal between structures such as pipes, tubes, in pistons, and cylinders. O-rings are made of various materials depending on how they will be used and are highly pliable...

Rubber O-Rings

Rubber O-Rings

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Viton O-Rings

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Die cutting is a mass fabrication process for cutting out shapes by shearing stock materials such as paper and chipboard using a die, which is a specially crafted tool used for cutting or shaping a material. The die has sharp...

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