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O-Rings

American Bolt Corp supplies Buna-N (Nitrile) and Viton® O-rings in 70 and 90 durometer for use in hydraulic, pneumatic, plumbing, and industrial fluid systems. These materials and hardness options cover common sealing needs where oil resistance, temperature range, and pressure ratings are key considerations.

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O-Ring Materials Available

Buna O-Rings

Buna-N is widely used in hydraulic and pneumatic applications due to its resistance to petroleum-based oils, fuels, and hydraulic fluids. It is a common choice for general industrial sealing requirements.

Viton O-Rings

Viton O-rings are commonly selected for applications involving higher temperatures or chemical exposure. They perform well in environments where standard elastomers may not be suitable.

Durometer Options

70 Durometer

70 durometer O-rings are commonly used in low to moderate pressure applications and are suitable for both static and light dynamic sealing.

90 Durometer

90 durometer O-rings are used in higher-pressure systems where added hardness helps reduce extrusion in the sealing groove.

Order Buna-N & Viton O-Rings

Browse our selection of Buna-N and Viton O-rings in 70 and 90 durometer. For questions on sizing, material selection, or availability, contact our team for assistance.