{"product_id":"value-collection-zmscs70379-silicone-o-ring-dash-379","title":"Value Collection ZMSCS70379 Silicone O-ring Dash 379","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCS70379 is a round cross-section silicone O-ring designed for sealing applications that demand a wide temperature range and reliable performance under dry heat conditions. With an inside diameter of 11 inches, an outside diameter of 11.375 inches, and a thickness of 0.1875 inches, this is a large-format O-ring suited to industrial and mechanical assemblies. The silicone compound is rated from -80 degrees F to 450 degrees F, making it appropriate for high-heat and cold-exposure environments. The durometer hardness rating is 70, placing it in the hard range for silicone. It is sold individually in a package quantity of one.\u003c\/p\u003e\u003cp\u003eThis O-ring is used in applications requiring a flexible, heat-resistant seal where exposure to ozone and weather elements is a concern. Silicone compounds at this hardness level are commonly specified in HVAC ductwork assemblies, industrial fluid handling, pump housings, and equipment flanges where extreme temperatures are a factor. The Dash 379 designation corresponds to a standard AS568 size classification, which aids in cross-referencing during replacement or specification work. Oil-resistance is limited with this silicone formulation, so it should not be specified in heavy petroleum fluid service without engineering review.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTemperature rated from -80 degrees F to 450 degrees F for wide thermal range service\u003c\/li\u003e\n\u003cli\u003eRound cross-section silicone construction with Dash 379 standard sizing\u003c\/li\u003e\n\u003cli\u003eHardness of 70 durometer (hard rating) for firm, consistent sealing compression\u003c\/li\u003e\n\u003cli\u003eGood weather and ozone resistance for outdoor or ventilated mechanical enclosures\u003c\/li\u003e\n\u003cli\u003eInside diameter of 11 inches and outside diameter of 11.375 inches for large-format fitment\u003c\/li\u003e\n\u003cli\u003eLimited oil resistance — suitable for dry heat and water-based fluid applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or maintenance sealing component for large-bore mechanical assemblies, flanged connections, and equipment housings that require an AS568 Dash 379 standard silicone O-ring.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eO-ring installation should be performed by a qualified technician following a complete system depressurization and fluid shutoff. Inspect the groove and mating surfaces for nicks, burrs, or contamination before seating the O-ring. Avoid twisting or rolling the O-ring during installation, as this can cause premature failure at the sealing surface. Do not use petroleum-based lubricants with this silicone compound; use a silicone-compatible lubricant where assembly lubrication is required.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 11 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 11.375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1875 inches\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 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\u003eDash Number\u003c\/strong\u003e: 379\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\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\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: ZMSCS70379\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51699219890482,"sku":"ZMSCS70379","price":14.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d07c30dd8efcd500b8bb1759bdfbae86_b7dbe053-3a69-4a9b-8896-ee04f43220c9.jpg?v=1788373693","url":"https:\/\/voomisupply.com\/products\/value-collection-zmscs70379-silicone-o-ring-dash-379","provider":"Voomi Supply","version":"1.0","type":"link"}