{"product_id":"buna-n-90a-durometer-hydraulic-o-ring-1","title":"Buna-N 90A Durometer Hydraulic O-Ring","description":"\u003ch2\u003eBuna-N 90A Durometer Hydraulic O-Ring\u003c\/h2\u003e\u003cp\u003eEngineered for demanding hydraulic and pneumatic sealing applications, this Buna-N (Nitrile) O-ring delivers reliable, leak-free performance under high-pressure conditions. With a firm 90A Shore A durometer rating, it resists extrusion and maintains its seal geometry even in high-pressure dynamic environments where softer compounds would fail.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Buna-N (NBR \/ Nitrile Butadiene Rubber)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurometer:\u003c\/strong\u003e 90A Shore A — firm compound ideal for high-pressure applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (-40°C to +121°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Rating:\u003c\/strong\u003e Suitable for high-pressure hydraulic systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFluid Compatibility:\u003c\/strong\u003e Petroleum-based hydraulic oils, mineral oils, fuels, water, and many industrial fluids\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards:\u003c\/strong\u003e Available in AS568 and metric dash sizes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHydraulic cylinders and actuators\u003c\/li\u003e\n\u003cli\u003ePneumatic fittings and valves\u003c\/li\u003e\n\u003cli\u003ePumps and motors\u003c\/li\u003e\n\u003cli\u003eHigh-pressure fluid connectors\u003c\/li\u003e\n\u003cli\u003eIndustrial machinery and equipment\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe harder 90A compound is specifically chosen over standard 70A for applications where system pressure would otherwise cause seal extrusion into clearance gaps, extending service life and reducing downtime.\u003c\/p\u003e","brand":"Yarbrough 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