Apple Rubber offers the seal industry's largest inventory of o-rings, which includes every standard AS568 and ISO 3601 size.
In addition to standard imperial and metric sizes, Apple Rubber also carries a wide variety of non-standard sizes. With over 300,000,000 o-rings in-stock, we have exactly what you are looking for and we can assure immediate delivery of any size in large or small quantities.
O-Ring Sizing Guides
AS568 Standard O-Ring Sizes – View List
ISO 3601 Standard Metric O-Ring Sizes – View List
All Standard and Non-Standard O-Ring Sizes – View List