O-Rings are supplied in a wide range of standard sizes and types by PAR Group. Materials available include nitrile, Viton®, silicone, EPDM, PTFE, neoprene, polyurethane and Kalrez®. Shore hardnesses can range from 40° to 90° and all are manufactured to British imperial and metric standards. Rubber O-Ring cords are also available for bespoke sizes.
Available in all British Standard numbers. Please view our BS O-Ring dimension table. Non-standard sizes are moulded to order, and larger sizes can be scarf jointed.
How to Measure an O-Ring