{"product_id":"parker-426312500875-250-polypak-seal-7-8-x-1-1-8-in","title":"Parker 426312500875-250 Polypak Seal 7\/8 X 1-1\/8 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PARKER 426312500875-250 is a Polypak seal designed for use in hydraulic and pneumatic systems requiring reliable dynamic sealing under pressure. This seal measures 7\/8 inches inner diameter by 1-1\/8 inches outer diameter with a 1\/8 inch thickness and is rated for operating pressures up to 2000 psi. The temperature range spans -20 degrees F to 250 degrees F, making it suitable for a broad range of fluid power applications. It is installed by hydraulic technicians, maintenance mechanics, and fluid power specialists as a replacement or service seal in cylinders and actuators.\u003c\/p\u003e\u003cp\u003eThis Polypak seal is used in hydraulic cylinder and actuator assemblies in both industrial and mobile equipment environments. It performs as a rod or piston seal where a compact, energized lip seal profile is required. The 1\/4 pipe thread reference in the product data suggests compatibility with fittings or ports of that size. Applications span light industrial machinery, fluid power circuits, and maintenance repair operations where standard Polypak geometry is specified.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e2000 psi maximum operating pressure for demanding hydraulic service\u003c\/li\u003e\n\u003cli\u003eTemperature range of -20 degrees F to 250 degrees F covers most industrial fluid media\u003c\/li\u003e\n\u003cli\u003eCompact Polypak profile provides energized lip sealing in limited-space cylinder bores\u003c\/li\u003e\n\u003cli\u003e7\/8 inches ID x 1-1\/8 inches OD x 1\/8 inches thick for precise dimensional fit\u003c\/li\u003e\n\u003cli\u003eSingle-piece packaging suits individual service and repair jobs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement Polypak seal for hydraulic cylinders and actuators requiring a 7\/8 inches ID by 1-1\/8 inches OD by 1\/8 inches thick seal rated to 2000 psi.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified hydraulic technician or fluid power mechanic. Depressurize and isolate the hydraulic circuit completely before disassembly. Lubricate the seal with compatible hydraulic fluid before installation to avoid lip damage during insertion. Follow the equipment manufacturer's service manual for proper groove dimensions and assembly sequence.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter\u003c\/strong\u003e: 7\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 1-1\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal Thickness\u003c\/strong\u003e: 1\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Operating Pressure\u003c\/strong\u003e: 2000 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range\u003c\/strong\u003e: -20 degrees F to 250 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Polypak Seal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.13 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 20122851\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: PARKER\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 426312500875-250\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PARKER","offers":[{"title":"Default Title","offer_id":51540212056370,"sku":"426312500875-250","price":91.72,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5fa7090905872c22ef77017ae5042a25.jpg?v=1785848993","url":"https:\/\/voomisupply.com\/products\/parker-426312500875-250-polypak-seal-7-8-x-1-1-8-in","provider":"Voomi Supply","version":"1.0","type":"link"}