Engineered for reliable sealing performance in demanding, high-pressure applications, our 90A Durometer Buna-N O-rings offer a firmer, harder compound compared to standard 70A rings — ideal where extrusion resistance and higher pressure ratings are required. Manufactured to precise AS568 dimensional tolerances, these O-rings deliver consistent compression and long-lasting leak-free seals.
Key Features
Precision-molded to standard AS568 dimensions for universal compatibility
90A Durometer (Shore A) hardness for superior extrusion resistance in high-pressure systems
Excellent resistance to compression set, ensuring a lasting seal over time
Suitable for static and dynamic sealing applications
Compatible with hydraulic oils, fuels, and a broad range of petroleum-based fluids
Common Applications
High-pressure hydraulic and pneumatic cylinders
Pumps, valves, and fittings under elevated pressure
Fluid and gas connectors in demanding environments
