O-Rings/

Metric O-Rings

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

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Packing Seals & Engineering, LLC
Jacksboro, TN
800-626-1150
Packing Seals & Engineering is a recognized leader in the provision of branded, proprietary and commercial equivalent components serving a wide variety of markets including water purification, medical, consumer, automotive and electronics OEMs. Our core strength is in applications engineering for metric o-rings. This gives customers an added dimension to problem solving for multiple solutions.
 
Arizona Sealing Devices, Inc.
Chandler, AZ
480-892-7325
Since 1989, Arizona Sealing Devices distributes metric o-rings. We offer products for the commercial, FDA, military and other institutions. We also have caps, plugs, gaskets & more. Custom, rubber and metal o-rings as well as diaphragms, face seals and non-standard o-rings are also offered. Arizona Sealing Devices makes everything easier. Visit our website today to find out more.
 
Allied Metrics Seals & Fasteners, Inc.
Sparta, NJ
973-383-2487
Allied Metrics Seals & Fasteners is a manufacturer and distributor of metric o-rings, metric seals, oil seals, hydraulic piston seals, pneumatic seals, hydraulic rod seals and more. We also produce and distribute piston seals, rod seals, v-packing, Teflon® parts, buffer rings and backup rings. As your one-stop source for sealing solutions, we provide inexpensive quality seals in all sizes, fast.
 
RG Sales, Inc.
West Alexander, PA
724-484-7544
R G Sales is a distributor of Rubber Seal Products including packing, metric o-rings, parback, quad, back up, piston, seals, sleeves and u-ups from manufacturers such as Parker, CR, National, and John Crane, among others. We love making our customers happy by supplying them with high quality products from top-name manufacturers. Call us or visit our website today for more information.
 
ACE Rubber Products, Inc.
Kennedale, TX
800-815-8220
The founders of ACE Rubber Products are experienced rubber molders and mold makers whose careers span an excess of 50 years. Their objective is to produce the best product possible. Our products include: custom gasket seals, custom molded parts, custom metric o-rings, bellows, bushings, grommets and much more. We can meet all your rubber supply needs. Visit our website soon.
 
Seastrom Manufacturing Co., Inc.
Twin Falls, ID
800-634-2356
Aside from our vast supply of stocked parts, Seastrom can modify any of our standard part numbers to meet your applications, reducing the cost of tooling. Find out what our company can do for your metric o-rings requirements. Seastrom takes pride in its efforts to comply with all current quality, employment and environmental regulations and certifications.
 

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Hunter Sales Corporation
Bethel Park, PA
800-879-5308
For over 45 years, Hunter Sales has been a custom fabricator of metric o-rings and gaskets. We are proud to represent quality manufacturers such as Garlock, JM Clipper, Dodge-Regupol, Fabreeka and Chemstar. To meet any sealing purpose, we have the capacity to die cut, hand make and fabricate all types of gaskets. Visit our website today to see how we can help you with your sealing needs.
 
Atlantic Rubber Company, Inc.
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 metric o-rings. Our natural rubber tubing is cold temperature and abrasion resistant. We are proudly ISO 9001 certified. Contact us today for more information.
 
Sealing Specialties, Inc.
Souderton, PA
800-543-5350
Sealing Specialties is a nationally recognized distributor of all types of high-quality hydraulic seals and sealing products. Our products include braided packings, elastomeric and mechanical seals, gaskets, metric o-rings and oil seals. We provide innovative solutions to our customers with service they can depend on. We are ISO9001 compliant and stand behind our products.
 
Sealing Devices Inc.
Lancaster, NY
716-684-7600
Sealing Devices is a leading North American distributor & fabricator of metric 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!
 
New England Gasket
Bristol, CT
860-584-2724
New England Gasket can custom manufacture any and all your needs for gaskets, washers, seals, metric o-rings and stampings, correctly, on time and on budget. Whether you're the manufacturer, engineer, designer or supplier, you can get all the quality and service needed right here. We have capabilities for virtually any type of die cut from a wide variety of materials. Contact us for a quote.
 
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Industry Information

Metric O-Rings

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.