Sizing
How to Measure an O-Ring
Two dimensions, one common mistake, and when to measure the groove instead.
Backup Ring Size Chart
AS568 back-up ring size chart: dash numbers with ID, width, height, and contour dimensions for high-pressure extrusion protection.
Master O-Ring Size Chart
Filterable multi-standard O-Ring size chart, search by ID or cross-section across AS568, ISO, JIS, BS, DIN and more.
O-Ring Size Charts & Standards (AS568 & Metric)
AS568 and metric O-Ring size charts, dash numbers, groove design, and how to measure an existing seal.
