O Ring Buna Nitrile Rubber 70 Durometer 3 Inch Inner Diameter 3 1/8 Inch Outer Diameter Pack Of 10 ORBN041x10 Standard Size For Hydraulic Systems Automotive Off Road Oil And Grease Resistant

Buna N O-Ring, 3in ID x 3 1/8in OD, Pack of 10
✔️ Oil and grease resistant nitrile seal for hydraulics and engines

These Buna N O-rings are standard-sized seals crafted from Buna N (Nitrile) with 70 durometer hardness. They’re designed for hydraulic systems, automotive, and off-road equipment where oil and grease resistance matters.

✅ 70 durometer Buna N nitrile for strong oil and grease resistance
✅ 3 in ID and 3 1/8 in OD standard ORBN041x10 size
✅ Pack of 10 O-rings per order
✅ Temperature range -30°F to 250°F (-34°C to 121°C)
✅ Compatible with aliphatic hydrocarbons (diesel, mineral oils, fuels)
✅ Not compatible with fuels high in aromatics or chlorinated solvents

💡 What is a Buna N O-ring used for in hydraulic and automotive systems? A handy overview for buyers: - Seals petroleum oils, hydraulic fluids, and greases - Performs across a wide temperature range from -30°F to 250°F - Compatible with aliphatic hydrocarbons like propane, diesel, and mineral oils - Not recommended for fuels with high aromatic content or chlorinated solvents