{"product_id":"parker-426337504500-625-polypak-seal-4-5x5-25-in","title":"Parker 426337504500-625 Polypak Seal 4.5x5.25 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PARKER 426337504500-625 is a Polypak seal designed for hydraulic and pneumatic cylinder applications where a reliable, low-friction dynamic seal is required. It measures 4.5 inches inner diameter by 5.25 inches outer diameter with a 0.625-inch seal thickness. Rated for operating pressures up to 2000 psi and a temperature range of -20 to 250 degrees F, this seal is well suited for demanding industrial and mobile equipment service. Licensed technicians and maintenance mechanics working on hydraulic cylinders, actuators, and fluid power systems will find this seal a direct-fit replacement for worn or damaged rod and piston seals.\u003c\/p\u003e\n\u003cp\u003eThis Polypak seal is intended for use in hydraulic cylinders and fluid power assemblies where a single-acting, pressure-energized seal is needed. The Polypak design is a common configuration in both industrial and mobile hydraulic equipment, including construction machinery, agricultural equipment, and plant maintenance applications. It is suitable for use with 5\/8 pipe thread fittings and is compatible with standard hydraulic fluid media within the rated temperature and pressure range.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4.5 inches ID x 5.25 inches OD x 0.625 inches thick — precise dimensional fit for targeted cylinder bore sizes\u003c\/li\u003e\n  \u003cli\u003eRated to 2000 psi maximum operating pressure for high-pressure hydraulic service\u003c\/li\u003e\n  \u003cli\u003eOperating temperature range of -20 to 250 degrees F covers a wide range of ambient and fluid temperatures\u003c\/li\u003e\n  \u003cli\u003eCompatible with 5\/8 pipe thread fittings\u003c\/li\u003e\n  \u003cli\u003ePolypak seal profile provides reliable dynamic sealing with low breakout friction\u003c\/li\u003e\n  \u003cli\u003eSingle-unit packaging allows for individual seal replacement without purchasing a full kit\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 fluid power actuators requiring a 4.5 inches ID by 5.25 inches OD seal with a 0.625-inch thickness and 5\/8 pipe thread interface.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified hydraulic technician or millwright. Fully depressurize and isolate the hydraulic circuit before disassembling any cylinder or actuator. Use a seal installation tool appropriate for the bore size to avoid nicking or rolling the seal lip during assembly. Follow OSHA lockout\/tagout procedures and adhere to applicable equipment manufacturer service guidelines.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInner Diameter\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 5.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeal Thickness\u003c\/strong\u003e: 0.625 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 to 250 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePipe Thread Size\u003c\/strong\u003e: 5\/8 inch\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: 426337504500-625\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PARKER","offers":[{"title":"Default Title","offer_id":51539548733746,"sku":"426337504500-625","price":341.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/963090281974d9419b9752e837d8ebf4.jpg?v=1785842831","url":"https:\/\/voomisupply.com\/products\/parker-426337504500-625-polypak-seal-4-5x5-25-in","provider":"Voomi Supply","version":"1.0","type":"link"}