Welcome to our AS568 O-ring Size Chart section

This O-ring size chart provides a list of standard AS568 O-ring sizes. Most industries consider AS568 specifications, standard O-ring sizes. Each AS568 dash number is a unique number that denotes specific O-ring dimensions. 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 purchase custom O-ring sizes which can be more costly. This AS568 O-ring chart is a SAE size standard for O-rings and shows AS568 Rev B or AS568B O-ring sizes which supersedes AS568 Rev A or AS568A O-ring dimensions. We have millions of AS568 O-rings in stock which can be purchased easily through our O-rings Online Store.