{"product_id":"value-collection-zmsch70fda211-o-ring-dash-211-buna-n-25-pack","title":"Value Collection ZMSCH70FDA211 O-ring Dash 211 Buna-n 25 Pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION ZMSCH70FDA211 is a Dash 211 O-ring manufactured from Buna-N (Nitrile Butadiene Rubber), one of the most widely used elastomers in sealing applications across plumbing, HVAC, and fluid-handling systems. It measures 0.7960 inches inside diameter, 1.0620 inches outside diameter, and 0.1250 inches thick with a round cross section. Rated for a hardness of 70 Shore A, this O-ring carries FDA approval and meets SAE and MIL-Spec standards, making it suitable for both standard mechanical sealing and food-grade or petroleum-fluid contact applications. Each package contains 25 rings.\u003c\/p\u003e\n\u003cp\u003eThis O-ring is used wherever a reliable, petroleum-resistant seal is required in residential and light commercial systems. Common applications include pump seals, valve stems, pipe fittings, compression fittings, and hydraulic or pneumatic connections exposed to petroleum-based fluids, oils, and fuels. The Buna-N compound delivers excellent compression set resistance and strong tear and abrasion resistance, making it well suited for static and dynamic sealing in HVAC equipment, plumbing assemblies, and fluid-power components. The FDA-approved white Buna-N compound also extends its use to applications requiring incidental food contact compliance.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBuna-N (Nitrile Butadiene Rubber) construction with excellent resistance to petroleum products, oils, and fuels\u003c\/li\u003e\n  \u003cli\u003eFDA approved white compound suitable for food-grade and standard sealing applications\u003c\/li\u003e\n  \u003cli\u003eMeets SAE and MIL-Spec standards for dimensional and material conformance\u003c\/li\u003e\n  \u003cli\u003eRound cross section with 70 Shore A hardness rating for reliable compression sealing\u003c\/li\u003e\n  \u003cli\u003eOperating temperature range of -40 degrees F to 250 degrees F\u003c\/li\u003e\n  \u003cli\u003ePackaged in quantities of 25 rings per pack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with petroleum products, oils, fuels, and hydraulic fluids. Designed as an OEM-style replacement or service-stock O-ring for Dash 211 applications in plumbing valves, HVAC refrigerant-circuit fittings, pump assemblies, and fluid-handling components requiring a Buna-N elastomer seal.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eO-rings of this type are installed by licensed plumbers, HVAC technicians, and pipefitters during valve service, pump rebuilds, and fitting assembly. Always depressurize and isolate the system before replacing any O-ring seal. Lightly lubricate the O-ring with a compatible petroleum-based or system-appropriate lubricant before seating to prevent twisting or tearing during installation. Do not store Buna-N O-rings in direct sunlight or near motors, generators, or other equipment that may produce ozone, as ozone exposure degrades nitrile compounds.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Buna-N (Nitrile Butadiene Rubber)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 211\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 0.7960 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 1.0620 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1250 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 Shore A (Hard)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Working Temperature\u003c\/strong\u003e: -40 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Working Temperature\u003c\/strong\u003e: 250 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Fluids\u003c\/strong\u003e: Petroleum Products\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: White\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFDA Approved\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: SAE, MIL-Spec\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 25\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.869 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31401503\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: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: ZMSCH70FDA211\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51721926803762,"sku":"ZMSCH70FDA211","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d07c30dd8efcd500b8bb1759bdfbae86_b54ceb51-942a-49fb-988f-8bfd2b218a4a.jpg?v=1788583307","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70fda211-o-ring-dash-211-buna-n-25-pack","provider":"Voomi Supply","version":"1.0","type":"link"}