{"product_id":"95a-polyurethane-70a-nitrile-energizer-hydraulic-piston-seal-assembly","title":"95A Polyurethane \/ 70A Nitrile Energizer Hydraulic Piston Seal Assembly","description":"\u003ch2\u003eEngineered for High-Pressure Hydraulic Piston Applications\u003c\/h2\u003e\u003cp\u003eThis two-component piston seal assembly combines a \u003cstrong\u003e95A Shore A polyurethane primary seal\u003c\/strong\u003e with a \u003cstrong\u003e70A durometer nitrile (Buna-N) energizer\u003c\/strong\u003e to deliver consistent, leak-free performance across demanding hydraulic cylinder applications. The polyurethane outer seal provides exceptional abrasion resistance and extrusion resistance under high-pressure cycling, while the nitrile energizer maintains constant radial load against the bore for positive sealing at both static and dynamic conditions.\u003c\/p\u003e\u003ch3\u003eKey Performance Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-material construction\u003c\/strong\u003e — polyurethane sealing lip backed by a nitrile energizer for sustained contact force\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh extrusion resistance\u003c\/strong\u003e — 95A durometer polyurethane withstands pressure spikes and side-loading in heavy-duty cylinders\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad fluid compatibility\u003c\/strong\u003e — nitrile energizer compatible with petroleum-based hydraulic fluids, water-glycol, and most mineral oils\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow friction profile\u003c\/strong\u003e — optimized geometry reduces stick-slip and breakout force for smooth piston actuation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide temperature range\u003c\/strong\u003e — suitable for continuous operation in standard industrial hydraulic environments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHydraulic cylinders (mobile and industrial)\u003c\/li\u003e\n\u003cli\u003ePiston rod and bore sealing in MRO and OEM assemblies\u003c\/li\u003e\n\u003cli\u003eConstruction, agricultural, and material handling equipment\u003c\/li\u003e\n\u003cli\u003ePress and injection molding hydraulic systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eMeets dimensional standards consistent with AS568 and ISO groove specifications. 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