keyboard_arrow_up

Large O-Rings Manufacturers and Suppliers

IQS Directory provides a comprehensive list of large o-ring manufacturers and suppliers. Use our website to review and source top large o-ring manufacturers with roll over ads and detailed product descriptions. Find large o-ring companies that can design, engineer, and manufacture large o-rings to your companies specifications. Then contact the large o-ring companies through our quick and easy request for quote form. Website links, company profile, locations, phone, product videos and product information is provided for each company. Access customer reviews and keep up to date with product new articles. Whether you are looking for manufacturers of large rubber o-rings, large diameter o-rings, round flat o-rings, or customized large o-rings of every type, this is the resource for you.

  • Chandler, AZ 480-892-7325

    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. Viton® o-rings & o-ring kits are supplied by Arizona Sealing Devices, making us the source of seals, die cutting, oil seals, packings, sheeting, vee rings, etc.

  • Sparta, NJ 973-383-2487

    A leading o-ring manufacturer of quality metric seals for industries worldwide, defines Allied Metrics Seals & Fasteners. We are ISO 9001:2015 certified, and 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!

  • Cleveland, OH 800-860-6210

    North American Seal & Supply distributes and fabricates a variety of seal and packing products: standard o-rings, metric o-rings, molded and extruded o-rings, gaskets, o-ring kits and more. We can help you find a unique solution to your application, so call us today or visit our website.

  • West Jordan, UT 800-669-9638

    We are the o rings experts. We have years of industry experience manufacturing sealing rings of all kinds for all materials and industries. We specialize in offering a massive inventory so you can always find what you need with us! You can also call us today so we can help you choose the best solution to your problem. Contact us today to learn more!

  • 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!

  • Littleton, MA 800-882-3666

    If you are looking for top quality products, look no further than our large o rings and large stock of high quality sealing products! We offer both standard and metric sizing to suit all applications and uses in industries ranging from automotive to water treatment. We have the nation’s largest inventory of Pure Gum Rubber If you have a unique sealing needs, we can even create a customized product just for you! Contact us today to find out more!

  • More Large O Rings Companies

businessIndustry Information

Large O-Rings

Large O-rings are the most massive sized O-rings available for sale. Some are offered through sizing charts and mass produced, while others must be custom made to fit certain dimensions. They are made out of elastomeric rubber or thermoplastic materials like silicone, Teflon or Viton, and exhibit the same properties.

Large O-rings are used in most process industries, specifically within the chemical, hydrocarbon, pharmaceutical, food processing, beverage and electronics industries. The multitude of applications for large o-rings includes thread tube fitting, which involves a third piece between two tubes that connects them, known as a union piece. This piece allows access for system check-ups and management of leaks and such. Fitting military gland designs, which are larger than most O-ring grooves, is also one example of how large o-rings are utilized. There is also the production of flat panel displays, which are built to support the weight of an object perpendicular to a wall. Such a display cannot shake or move and therefore requires the soft buffer of an o-ring between the wall and the mount part screwed into it.  All of these applications require the use of a basic o-ring, except with a larger width, outside diameter and inside diameter, to support the proper magnitude of the product it is part of supporting. Large o-rings are usually rubber rather than metal, particularly in reference to the three applications just discussed.


There are several different methods to determine the size of an O-ring or the desired size for a specific application. O-ring gauges are devices that measure the size of any O-ring by placing the O-ring being measured around two halves of spindles until it is a tight fit. The spindles expand until tight, and a size is sown in a digital window. Digital calipers perform a similar way, but measure the O-ring by a size chart. Shadow graphs match an O-ring with its correct standard sizing by providing life-size drawings of O-rings. All O-rings have standardized sizes among different countries, the most popular of which is the AS568 O-rings. Large o-rings are often sold as a part of an o-ring kit, with a variety of o-ring sizes packaged together by an o-ring manufacturer. For companies that have a multitude of products or systems requiring o-rings, a kit including all the sizes they need would be a smarter investment then buying each o-ring size individually.

More Large O-Rings



Large O-Rings
Large O-Rings - Allied Metrics Seals & Fasteners, Inc.