For more than 40 years, Marco Rubber & Plastics has been offering custom and standard o-rings and other sealing solutions for multiple industries. With millions of products produced and shipped annually, we are the experts your organization needs to seal the success of your application. Explore standard size o-ring sizes below.

001 0.029 0.004 0.040 0.003 0.74 0.10 1.02 0.08 002 0.042 0.004 0.050 0.003 1.07 0.10 1.27 0.08 003 0.056 0.004 0.060 0.003 1.42 0.10 1.52 0.08 004 0.070 0.005 0.070 0.003 1.78 0.13 1.78 0.08

Bold type denotes Standard AS568. Please check out latest standard for current revision. Inches Millimeters I.D. W. I.D. W. Inches Millimeters I.D. W. I.D. W. Inches Millimeters O-Ring Seal Sizes NOT all sizes readily available in all materials. For quotes, prototypes or questions, call: 1-800-828-7745

Standard O-ring Sizes (000 Series 004 to 050 cross section Diameters w = .070 ± .003 inches, w = 1,78 ± 0,08 mm Size Nominal Size Standard O-ring Size Metric O-ring Size Only (Inches) (Inches) (millimeters) AS 568A Actual Per AS 568 A Actual Per

Standard British O-Rings sizes. Tolerances vary by use, please see out tolerance pages. Thousands of non-standard sizes are available in stock or can be made within a few weeks typically without tooling fees so no need to settle for a less than optimal fit. Order Online Click Size Button CS = Cross Section ID = Inside Diameter OD = Outside Diameter

Global O-Ring and Seal carries a full line of o-rings in all standard AS568 and most metric sizes. We are also here to guide you through the sizing process. Give us a call at 832-448-5550 to speak with an Industry Expert, or if you are local to the Houston area, come visit us at our Will Call department for more help on sizing o-rings.

An O-ring is a solid-rubber seal shaped like a doughnut or torus. When compressed between mating surfaces, an O-ring blocks the passage of 20 sizes for boss seals. The standard sizes are also used for most military specifications. Cross-sectional diameters range from 0.040 to 0.275 inch. Inside diameters range from 0.029 to

SKF supplies all O-rings with dimensional tolerances in accordance with ISO 3601-1: Class B (table 2). They are suitable for any elastomer material provided 

The most commonly found o’ring size standard, even in metric based machinery 0.070″ (1/16″ Nominal) 1.78mm Cross Section Show entries Showing 1 to 10 of 50 entries Previous Next 0.103” (3/32″ Nominal) 0.139” (1/8″ Nominal) 0.210” (3/16″ Nominal) 0.275” (1/4″ Nominal) SAE Straight Thread Boss Seals BS Extended Range

The Japanese Industrial Standard (JIS B 2401) contains three groups; aerospace group, general purpose group, and traditional group. These o-ring sizes are unique to Japan's automotive, semiconductor, and manufacturing industries. JIS O-Ring Groups. Aerospace Group. 367 sizes and follows ISO 3601-1 very closely (with a few extra sizes).

Rocket Seals, Inc. Rocket Seals, Inc. 1297 S. Lipan St. Denver, CO 80223. Local Number: 303.777.7024 Local Number: 303.777.7024. Toll Free: 1.800.445.7803 Toll Free