{"product_id":"value-collection-zmscs70281-silicone-o-ring-dash-281","title":"Value Collection ZMSCS70281 Silicone O-ring Dash 281","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCS70281 is a Dash 281 silicone O-ring with a round cross section, designed for static and dynamic sealing applications across a wide range of operating conditions. It measures 15 inches inside diameter, 15.25 inches outside diameter, and 0.125 inches thick. The silicone compound delivers a working temperature range of -80 degrees F to 450 degrees F, making it suitable for applications that demand both low-temperature flexibility and high dry-heat resistance. Durometer hardness is rated at 70, placing it in the hard category. This O-ring is installed by plumbers, HVAC technicians, industrial mechanics, and pool service professionals wherever a large-diameter silicone seal is required.\u003c\/p\u003e\u003cp\u003eThis O-ring is suited for residential and commercial installations where exposure to wide temperature swings, outdoor weathering, or ozone is a concern. Its silicone material provides good weather and ozone resistance along with limited oil resistance, making it appropriate for dry-heat environments, certain chemical exposures, and applications involving solvents. It is not FDA approved and should not be specified for food-contact or pharmaceutical sealing without independent verification of compliance requirements. Typical applications include large-bore pipe flanges, equipment housings, and tank covers in HVAC, plumbing, and industrial process systems.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSilicone compound rated from -80 degrees F to 450 degrees F for wide thermal range service\u003c\/li\u003e\n\u003cli\u003eRound cross section at 0.125 inches thickness for standard groove fitment\u003c\/li\u003e\n\u003cli\u003e70 durometer hardness provides firm compression and reliable sealing under load\u003c\/li\u003e\n\u003cli\u003eGood weather and ozone resistance for outdoor or exposed installations\u003c\/li\u003e\n\u003cli\u003eCompatible with oils, chemicals, and solvents within silicone material limits\u003c\/li\u003e\n\u003cli\u003eDash 281 designation for cross-reference ordering and groove specification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or service seal for large-bore applications specifying a Dash 281 silicone O-ring with a 15-inch inside diameter and 0.125-inch cross section.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified tradesperson following the equipment manufacturer's groove and compression specifications. Shut down and depressurize the system fully before removing or installing any O-ring seal. Avoid rolling, twisting, or overstretching the O-ring during installation, as silicone compounds are more susceptible to tearing than nitrile or EPDM alternatives. Verify chemical compatibility with the specific media in the system before installation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 15 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 15.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 281\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross Section Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: 70 Shore A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Rating\u003c\/strong\u003e: 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\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\u003eWeight\u003c\/strong\u003e: 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31401503\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: ZMSCS70281\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51720428650802,"sku":"ZMSCS70281","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d07c30dd8efcd500b8bb1759bdfbae86_8ed2f4c9-6683-4be3-bd1e-7a5c9e40e1bf.jpg?v=1788563813","url":"https:\/\/voomisupply.com\/products\/value-collection-zmscs70281-silicone-o-ring-dash-281","provider":"Voomi Supply","version":"1.0","type":"link"}