When you need dependable sealing solutions for your mechanical systems, these Buna-N O-rings deliver consistent performance across a wide range of applications. Made from premium black Buna-nitrile material, these rings offer excellent resistance to compression set, abrasion, and tearing, ensuring they maintain their sealing integrity even under demanding conditions.
Each O-ring features a precise 70A shore durometer rating, striking the perfect balance between flexibility and firmness. This hardness level provides excellent sealing performance while allowing the material to conform properly to mating surfaces. The 1-1/16" inside diameter and 1-5/16" outer diameter make these rings suitable for countless industrial, automotive, and plumbing applications where precise dimensions are critical.
Buna-nitrile construction gives these O-rings outstanding compatibility with various fluids including petroleum products, hydraulic fluids (HFA, HFB, HFC), vegetable oil, alcohol, and aliphatic hydrocarbons. They perform reliably in temperatures ranging from -30°F to 250°F, making them suitable for both cold winter starts and high-temperature operations. The material's high tensile strength ensures these rings won't stretch or deform easily during installation or use.
These O-rings are commonly found in engines, faucets, flanges, valves, and hydraulic cylinders throughout countless systems. Whether you're performing routine maintenance on automotive equipment, repairing industrial machinery, or working on plumbing systems, having a supply of quality O-rings on hand saves time and prevents downtime. The pack of 100 ensures you'll have plenty for multiple projects or replacements.
While Buna-N offers excellent resistance to many chemicals, it's vulnerable to acetone, ethers, esters, ozone, and prolonged UV exposure. Avoid using these rings in ozone-generating equipment, welding applications, or areas with direct sunlight exposure. Meeting Aerospace Standard AS568A specifications, these rings provide the quality assurance needed for critical sealing applications.
