{"product_id":"parker-426337505250-625-polypak-seal-5-25x6-in","title":"Parker 426337505250-625 Polypak Seal 5.25x6 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PARKER 426337505250-625 is a Polypak-style hydraulic rod and piston seal designed for use in fluid power systems where reliable dynamic sealing is required. With a 5.25-inch inner diameter, 6-inch outer diameter, and 0.375-inch thickness, this seal provides a positive lip contact that compensates for wear over time, maintaining consistent sealing performance. Rated for an operating temperature range of -20 degrees F to 250 degrees F and a maximum operating pressure of 850 psi, it suits demanding hydraulic cylinder and actuator applications. Installation is performed by hydraulic system technicians and industrial maintenance professionals.\u003c\/p\u003e\n\u003cp\u003eThis Polypak seal is suited for hydraulic cylinder rod and piston gland applications in industrial, mobile, and fluid power equipment. The single-acting lip seal design is commonly used in medium- to heavy-duty hydraulic systems where dynamic reciprocating motion is present. The 5\/8 pipe thread connection reference makes it compatible with standard ported gland fittings. It is packaged individually and sold in single-unit quantities, making it appropriate for targeted maintenance and repair tasks where only one seal size is required at a time.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePolypak lip seal geometry compensates for wear, maintaining sealing contact throughout service life\u003c\/li\u003e\n  \u003cli\u003e5.25 inches ID x 6 inches OD x 0.375 inches thick for precise gland fit\u003c\/li\u003e\n  \u003cli\u003eRated to 850 psi maximum operating pressure for medium- to heavy-duty hydraulic service\u003c\/li\u003e\n  \u003cli\u003eOperating temperature range of -20 degrees F to 250 degrees F covers most industrial hydraulic fluid environments\u003c\/li\u003e\n  \u003cli\u003e5\/8 pipe thread reference for standard gland compatibility\u003c\/li\u003e\n  \u003cli\u003eSingle-unit packaging supports individual repair and replacement tasks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement Polypak seal for hydraulic cylinders and actuators with a 5.25-inch ID gland bore and 6-inch OD housing dimension in industrial and mobile fluid power applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation of hydraulic seals should be performed by qualified hydraulic system technicians. Depressurize and fully isolate the hydraulic circuit before disassembling any cylinder or actuator. Use a seal installation tool or smooth mandrel to avoid cutting or rolling the lip during installation into the gland groove. Inspect the rod and bore surfaces for scoring or contamination before fitting the new seal, as surface damage will shorten seal service life.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInner Diameter\u003c\/strong\u003e: 5.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeal Thickness\u003c\/strong\u003e: 0.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Operating Pressure\u003c\/strong\u003e: 850 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature Range\u003c\/strong\u003e: -20 degrees F to 250 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePipe Thread\u003c\/strong\u003e: 5\/8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Polypak Seal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.25 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 20122851\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 426337505250-625\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PARKER","offers":[{"title":"Default Title","offer_id":51542875472178,"sku":"426337505250-625","price":390.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/24621dca024831008e042ba19eef446c.jpg?v=1785909589","url":"https:\/\/voomisupply.com\/products\/parker-426337505250-625-polypak-seal-5-25x6-in","provider":"Voomi Supply","version":"1.0","type":"link"}