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Here is a quick video how to order O-Rings from our website: Order O-Rings On-line

How to measure an O-Ring?O-ring Size Diagram

O-rings are actually really easy to measure. All you need to do is measure the internal diameter (ID) or outside diameter (OD) and the width or cross section (C/S) of the o ring. The diagram shows exactly where these dimensions are to be found. Once you have these measurements you then need to decide if the size you need is AS568 inch sizes or if the best fit will be a metric o-ring.

An O-ring, also spelled o'ring, "O"ring or oring, is a flexible gasket with a circular cross section used to create an leak-proof seal. The O-ring is seated in a groove and compressed between two or more parts to create the seal. O-rings are typically made of rubber, particularly elastomers. Depending on the compound, rubber O-rings are strong, pliable, and resistant to oils and chemicals. The rubber O-ring is one of the simplest and most common types of seal for a wide range of applications. O-Ring seals are standard in connection fittings for tubing, hoses, and pipes, but they can be used to seal most anything with a passageway. O-rings vary in size from 0.5mm to 2" thick, and 1mm inside diameter to as big as you imagination, using our vulcanizing equipment. Shop for O-ring Online.

Size not listed, special requirements or large quantities: Request a Price Quote.