{"product_id":"value-collection-zmscs70437-silicone-o-ring-dash-437","title":"Value Collection ZMSCS70437 Silicone O-ring Dash 437","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCS70437 is a silicone O-ring with a round cross section, used for static and dynamic sealing applications in fluid and gas systems. It measures 6 inches inside diameter, 6.5 inches outside diameter, and 0.25 inches thick, placing it in the Dash 437 size classification. Rated at 70 durometer hardness, this ring delivers a firm seal under mechanical compression. Its silicone compound supports a wide service temperature range, from -80 degrees F to 450 degrees F, making it suitable where standard Buna-N or EPDM materials fall short. Licensed plumbers, HVAC technicians, and maintenance mechanics install this type of seal in equipment requiring reliable performance under thermal cycling or dry heat exposure.\u003c\/p\u003e\u003cp\u003eThis O-ring is suited for use in residential and commercial mechanical systems where broad temperature tolerance and resistance to weathering, ozone, and dry heat are required. Typical applications include pump housings, pipe flanges, valve bodies, and equipment covers where a large-diameter face seal or groove seal is needed. The silicone material also provides limited resistance to oils, chemicals, and solvents, expanding its usability across general maintenance and light industrial scenarios. Package quantity is 1 piece.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSilicone compound rated from -80 degrees F to 450 degrees F continuous service\u003c\/li\u003e\n\u003cli\u003eRound cross section, 0.25 inches thick, Dash 437 standard sizing\u003c\/li\u003e\n\u003cli\u003e70 durometer hardness rating for firm compression sealing\u003c\/li\u003e\n\u003cli\u003eGood weather and ozone resistance for indoor and outdoor installations\u003c\/li\u003e\n\u003cli\u003eCompatible with oils, chemicals, and solvents in light-duty exposure\u003c\/li\u003e\n\u003cli\u003eWhite color for visual identification during inspection and installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or service O-ring for large-diameter sealing applications requiring a Dash 437 silicone ring with 6 inch inside diameter and 0.25 inch cross section thickness.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eA licensed plumber, HVAC technician, or qualified maintenance mechanic should install this O-ring. Before service, shut down the system and relieve all pressure and fluid from the line or housing being serviced. Inspect the groove or seating surface for scoring or debris before seating the ring. Do not use petroleum-based lubricants with silicone O-rings; use a silicone-compatible assembly lubricant if needed.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 437\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 6.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross Section Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: 70 durometer (Hard)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Working Temperature\u003c\/strong\u003e: -80 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Temperature\u003c\/strong\u003e: 450 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Media\u003c\/strong\u003e: Oils, Chemicals, Solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFDA Approved\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31401503\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: ZMSCS70437\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51718532432178,"sku":"ZMSCS70437","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d07c30dd8efcd500b8bb1759bdfbae86_deec6450-b051-4f55-8478-89ecc9bf7b29.jpg?v=1788554065","url":"https:\/\/voomisupply.com\/products\/value-collection-zmscs70437-silicone-o-ring-dash-437","provider":"Voomi Supply","version":"1.0","type":"link"}