O Ring Cross Section Chart

Once you have these measurements you then need to decide if the size you need is listed below or if the best fit will be a metric oring.

O ring cross section chart.

The diagram shows exactly where these dimensions are to be found. Nominal cross section o rings. The global o ring and seal size reference chart covers the as568 o ring sizes published by the society of automotive engineers s a e and includes the extended sizes in the 400 series dimensional tolerances for all as568 o rings offered by global o ring and seal are in accordance with iso 3601 1a the purpose of this chart is to specify the inside diameters cross. Select a size to buy standard and custom o rings from the world s largest inventory network or custom orders can be made within a few weeks typically without tooling fees.

In de signing this new group of o rings we left spacing in the part numbers to allow us to add additional sizes should they be required. Until now o ring standards have left a gap between the 1 8 and 3 16 nominal cross sections. Because they can be expensive to machine o ring grooves should only be added when necessary or for metric o rings with a cross section larger than 3 53mm. Our groove design chart is a useful aid for selecting the right metric o ring groove dimensions for your design.

Find as568 o ring standard sizes by cross section inside diameter and outside diameter in our o ring size chart and separate o ring tolerance chart. Manufacturers of encapsulated o rings and industrial gaskets. 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.