AS568 O-ring Sizing Chart

Whatever your O-ring sizing requirements may be, TKF Tech can support you! If you can't find the O-ring size you need, or if you require something custom, feel free to get in touch with our engineers. 

​

AS568 is one of the most common O-ring sizing standards. The purpose of the table below is to define O-ring size identification codes (dash numbers), O-ring cross sections (CS), O-ring inside diameters (ID), and O-ring outside diameters* (OD) for all AS568 O-ring sizes. 

* Please note that the O-ring outside diameter is typically used as a reference dimension and is not used to define the compliance of a standard AS568 O-ring.