O rings are the most commonly used and widely available rubber sealing rings in the market.
O ring specification chart.
The best o rings are useless without the right groove design which becomes increasingly important the more demanding the application environment.
Cross sectional diameters range from 0 040 to 0 275 inch.
1 2 what is an o ring seal.
Review the general o ring groove design considerations before moving onto the.
On o ring drive belts and their application will be found in o ring applications section iii.
An o ring seal is used to prevent the loss of a fl uid or gas.
The seal assembly consists of an elastomer o ring and a gland.
If you need to know how to size an o ring consider starting with these as568 o ring sizes so you will not have to.
An o ring is a circular cross section ring molded from rubber figure 1 1.
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.
Refer to our standard o ring size chart to find usa as568 o ring dimensions.
Each as568 dash number is a unique number that denotes specific o ring dimensions.
The standard sizes are also used for most military specifications.
Custom and non standard o ring sizes available with no tooling or setup fees.
And metric o ring sizes.
Usa as568 o ring standard sizes are the most commonly used o ring sizes in the world.
Nominal cross section o rings.
O ring groove design guides offer default dimensional guidance on the most basic o ring groove design applications.
Various nations and organizations have developed o ring sizing standards that are now used worldwide.
O rings o rings are manufactured according to metric and im perial international standards such as as 568b din iso 3601 and jis.
Inside diameters range from 0 029 to 25 940 inches.
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.
Please contact us if you are looking for a size not shown in the 5 32 group.
Most industries consider as568 specifications standard o ring sizes.
Metric sizes standard metric sizes for o rings are defined by international standard iso 3601 1 2002.
There are 369 standard sizes.
Find the right size o rings quad rings x rings and square rings for your application.
O ring tolerances vary by use please refer to our o ring.
Popular o ring size standards include usa s as568 o ring size chart the uk s bs 1806 o ring sizing chart and japan s jis b 2401 o ring size list.
This o ring size chart provides a list of standard as568 o ring sizes.
Custom sizes of almost any dimen sion are possible such as miniature o rings and special o rings with large dimensions.
Until now o ring standards have left a gap between the 1 8 and 3 16 nominal cross sections.
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.
