When you need a seal that won't quit, these Buna-N O-rings deliver proven performance in countless applications. Whether you're working on automotive repairs, industrial machinery, or household plumbing projects, these 10-pack O-rings provide the reliability you need to keep everything running smoothly.
These O-rings are crafted from premium Buna-nitrile rubber that offers exceptional durability under pressure. With a 70A durometer hardness rating, they strike the perfect balance between flexibility and firmness, ensuring they maintain their sealing integrity even when compressed. The material boasts impressive tensile strength, excellent tear resistance, and outstanding compression set resistance, meaning these seals won't deform or lose their shape over time.
Engineered to perform reliably across a wide temperature range from -30°F to 250°F, these O-rings won't crack in the cold or become brittle in the heat. They're compatible with numerous fluids including petroleum products, hydraulic fluids (HFA, HFB, HFC), vegetable oil, alcohol, acids, and aliphatic hydrocarbons. This makes them ideal for automotive applications, hydraulic systems, fuel lines, and industrial equipment where chemical exposure is common.
Each O-ring features a 3-3/4" inside diameter, 4" outside diameter, and 1/8" width, making them suitable for countless standard applications. You'll find them perfect for sealing engine components, faucet valves, pipe flanges, hydraulic cylinders, and various mechanical assemblies. The aerospace-grade AS568A standard ensures consistent quality and performance that meets industry specifications.
For best performance, store these O-rings away from direct sunlight and ozone-generating equipment. While they excel at resisting many chemicals, avoid exposure to acetone, ethers, and esters which can degrade the Buna-N material. Always inspect O-rings before installation and replace any that show signs of cracking or excessive wear to maintain proper sealing performance.
