{"product_id":"value-collection-zmsch70fda231-o-ring-dash-231-nbr-10-pack","title":"Value Collection ZMSCH70FDA231 O-ring Dash 231 Nbr 10-pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCH70FDA231 is a Dash 231 O-ring manufactured from Buna-N (Nitrile Butadiene Rubber), the most widely used elastomer in fluid-sealing applications. It measures 2.609 inches inside diameter, 2.875 inches outside diameter, and 0.125 inches thick with a round cross section. Hardness is rated at 70 Shore A. This O-ring carries FDA approval and meets SAE and MIL-Spec standards, making it suitable for both food-grade and industrial sealing requirements. Each package contains 10 O-rings. Licensed tradespeople and maintenance technicians in HVAC, plumbing, and fluid-system service routinely specify this compound for petroleum-service applications.\u003c\/p\u003e\u003cp\u003eBuna-N O-rings in the Dash 231 size see widespread use across residential and commercial systems involving hydraulic lines, refrigerant service ports, water supply connections, and pneumatic fittings. The material provides excellent resistance to petroleum-based fluids, oils, and fuels. The FDA-approved white compound extends its use to potable water, food processing, and sanitary plumbing systems where material compliance is required. Operating temperature range spans -40 degrees F to 250 degrees F, covering most heating, cooling, and process-fluid service conditions encountered in the field.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBuna-N (Nitrile Butadiene Rubber) compound — excellent resistance to petroleum products, oils, and fuels\u003c\/li\u003e\n\u003cli\u003eFDA approved white compound suitable for food-grade and potable water applications\u003c\/li\u003e\n\u003cli\u003eMeets SAE and MIL-Spec standards\u003c\/li\u003e\n\u003cli\u003e70 Shore A hardness with excellent compression set, tear, and abrasion resistance\u003c\/li\u003e\n\u003cli\u003eOperating range: -40 degrees F to 250 degrees F\u003c\/li\u003e\n\u003cli\u003eRound cross section for consistent sealing in standard O-ring grooves\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with petroleum products and petroleum-based fluid systems. Suitable for use wherever Dash 231 Buna-N O-rings are specified in HVAC, plumbing, hydraulic, and pneumatic service applications. Should not be used with ozone-generating environments, direct sunlight exposure, or near electric motors that produce ozone.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by licensed plumbers, HVAC technicians, or hydraulic system technicians following applicable code requirements such as ASME or IPC guidelines. Always depressurize and de-energize the system and drain fluid before removing or replacing O-rings. Lubricate the O-ring with a compatible lubricant — use only lubricants rated for Buna-N and compatible with the system fluid — to ease installation and prevent tearing. Do not stretch or twist the O-ring during installation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (Decimal)\u003c\/strong\u003e: 2.609 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (Decimal)\u003c\/strong\u003e: 2.875 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: 231\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: Buna-N (Nitrile Butadiene Rubber)\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: -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\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: 10\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: ZMSCH70FDA231\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51710028972338,"sku":"ZMSCH70FDA231","price":14.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d07c30dd8efcd500b8bb1759bdfbae86_217d6ef4-e90b-43af-a037-be4240a5b7b8.jpg?v=1788463320","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70fda231-o-ring-dash-231-nbr-10-pack","provider":"Voomi Supply","version":"1.0","type":"link"}