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We make getting O-Rings easy! Check O-Ring inventory and place your order online 24/7.

O-Ring Elastomers can make O-Rings Expensive or Cheap.

When someone looks at an O-Ring, they usually don’t think it can cost upwards to several hundred dollars apiece. Most of the time, general-purpose seals made in the Asian market are only a few cents or dollars apiece. The cost of the O-Ring is greatly affected by the elastomer used to make it, the standards in which it is made and if it is made domestically or imported. The most popular and least expensive elastomer is imported Nitrile (Buna-N). More than fifty percent of sealing needs can be met using Buna-N Nitrile. The most expensive and best quality are Simriz® Perfluoroelastomer (FFKM) SZ498 O-Rings made in California. While every seal serves the same purpose (to block the passage of liquid or gas) they are all exposed to different environments. Many demanding industries like oil field machinery and chemical processing can expose O-Rings to extreme temperatures and caustic fluids on a daily basis. Sometimes, rubber seals made from specialty elastomers are the only thing that will withstand those applications. You certainly wouldn’t want to use the same O-Ring you put in your kitchen sink as you would in aerospace applications like SpaceX or NASA. We serve all O-Ring markets and needs by having great factory partners in Asia, Europe and the United States.

AS568 O-RING INCH SIZES

AS568 is the Aerospace Size Standard for O-rings from the Society of Automotive Engineers. The O-Ring Store LLC manufactures and supplies the complete range of standard AS568 sizes in a wide range of elastomeric O-ring materials. Link to the Compounds and O-Ring sizes, grouped by cross-section and listed numerically by inside diameter. AS568 O-Rings To make it easy you can search for all compounds by size, just use "AS568-010" in the search box.

METRIC O-RINGS - STANDARD, EUROPEAN, AND JAPANESE SIZES

The O-Ring Store LLC manufactures and supplies a complete range of Metric O-Rings in ISO3601 International Organization for Standardization, British Standard BS1806 O-ring sizes (imperial) -replaced by ISO3601 standard, British Standard BS4518 Metric O-ring Sizes and Japanese Standard JIS B 2401 (P, G and V) O-ring sizes. Link to the Compounds and O-Ring sizes, grouped by cross-section and listed numerically by inside diameter. Metric O-Rings To make it easy you can search for all compounds by size, just use the cross section X inside diameter x "2.00X024" in the search box.


We started as a simple online company taking care of a precious few people. Our circle of business friends has grown over the years and taking care of them is more satisfying than ever. We take care of our customers' Standard O-Rings, Metric O-Rings, Vulcanized O-Rings, and Custom O-Rings. Just place your O-Ring order online and we will take care of you too.

We are a family owned and operated Distributor and Manufacturer of O-Rings, O-Ring Kits, OSK™ O-Ring Service Kits, Hydraulic Seals, Adhesives, Lubricants, Braided Packings, Coatings, O-Ring Cord, Lathe Cut, Oil and Shaft Seals, Gaskets, Retaining Rings, Molded Packings, Seals, and Molded Rubber Products.

We serve many industries, including manufacturing, chemical processing, defense, power generation, agricultural, water treatment and filtration, hydraulics, fluid power, heavy truck, automotive, aerospace, oil and gas, medical and life sciences, food and beverage, electronics and industrial controls, refineries, and supply chain suppliers. Each industry and each customer have unique requirements that make them special. We love sharing customer stories and applications at our weekly store meeting.