{"product_id":"parker-426337504000-625-polypak-seal-4-in-id-4-3-4-in-od","title":"Parker 426337504000-625 Polypak Seal 4 in Id 4-3\/4 in Od","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PARKER 426337504000-625 is a Polypak seal designed for dynamic and static sealing applications in hydraulic and fluid power systems. With a 4-inch inner diameter, 4-3\/4-inch outer diameter, and a 0.375-inch seal thickness, this seal provides a reliable interference fit in standard gland designs. Rated to a maximum operating pressure of 2000 psi and a temperature range of -20 to 250 degrees F, it is suited for demanding service conditions. The 5\/8 pipe thread connection dimension aids in proper gland and bore sizing during installation. Hydraulic technicians and fluid power specialists are the primary installers of this component.\u003c\/p\u003e\u003cp\u003eThis Polypak seal is intended for use in hydraulic cylinders, actuators, and fluid power assemblies where a low-friction, energized lip seal profile is required. The Polypak design is commonly specified in both industrial and mobile hydraulic equipment operating at elevated pressures. It is appropriate for applications requiring a compact seal cross-section within a precise bore.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4-inch inner diameter and 4-3\/4-inch outer diameter for standard hydraulic bore sizing\u003c\/li\u003e\n\u003cli\u003e0.375-inch seal thickness for proper gland depth fitment\u003c\/li\u003e\n\u003cli\u003eMaximum operating pressure of 2000 psi for demanding hydraulic service\u003c\/li\u003e\n\u003cli\u003eTemperature range of -20 to 250 degrees F covering most industrial operating environments\u003c\/li\u003e\n\u003cli\u003e5\/8 pipe thread reference dimension for gland and bore sizing\u003c\/li\u003e\n\u003cli\u003eSold individually with a minimum order quantity of 1\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 fluid power actuators requiring a 4-inch ID by 4-3\/4-inch OD seal profile.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified hydraulic technician. Depressurize and isolate the hydraulic circuit completely before disassembling any cylinder or actuator. Lubricate the seal with clean system fluid prior to installation to avoid lip damage during assembly. Inspect the gland bore and rod surface for scoring or burrs that could compromise the seal contact area.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 4-3\/4 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: 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 Reference\u003c\/strong\u003e: 5\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.25 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Polypak Seal\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: 426337504000-625\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PARKER","offers":[{"title":"Default Title","offer_id":51541481095474,"sku":"426337504000-625","price":434.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/963090281974d9419b9752e837d8ebf4_a367ade6-6e19-4d69-b697-6bd92bb78614.jpg?v=1785877369","url":"https:\/\/voomisupply.com\/products\/parker-426337504000-625-polypak-seal-4-in-id-4-3-4-in-od","provider":"Voomi Supply","version":"1.0","type":"link"}