{"product_id":"value-collection-zmsch70204-o-ring-dash-204-nitrile-buna-n","title":"Value Collection ZMSCH70204 O-ring Dash 204 Nitrile Buna-n","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION ZMSCH70204 is a Dash 204 Buna-N (Nitrile Butadiene Rubber) O-ring with a round cross section, sized at 0.375 inches inside diameter, 0.625 inches outside diameter, and 0.125 inches thick. Rated at 70 Shore hardness, this O-ring is designed for use in fluid and gas sealing applications across HVAC, plumbing, refrigeration, and general mechanical systems. Its Buna-N compound is the most widely used O-ring elastomer in the trade, offering reliable performance with petroleum-based fluids, hydraulic oils, and fuels. It is installed by HVAC technicians, plumbers, and mechanical contractors in both residential and commercial applications.\u003c\/p\u003e\n\u003cp\u003eThis O-ring is suited for sealing applications involving petroleum products, hydraulic systems, and fuel lines. It performs across a wide service temperature range of -40 degrees F to 250 degrees F, making it appropriate for typical HVAC refrigerant line fittings, valve stems, compressor ports, and plumbing connections where a Dash 204 cross-section profile is specified. It is not recommended for exposure to ozone-generating equipment, direct sunlight storage, or applications requiring FDA-compliant materials.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBuna-N (Nitrile Butadiene Rubber) compound with excellent resistance to petroleum products and hydraulic fluids\u003c\/li\u003e\n  \u003cli\u003e70 Shore hardness rating provides firm sealing compression without excessive deformation\u003c\/li\u003e\n  \u003cli\u003eService temperature range from -40 degrees F to 250 degrees F\u003c\/li\u003e\n  \u003cli\u003eRound cross-section profile to Dash 204 standard dimensions\u003c\/li\u003e\n  \u003cli\u003eMeets SAE and MIL-Spec standards\u003c\/li\u003e\n  \u003cli\u003eGood tear and abrasion resistance for repeated installation cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with petroleum products, hydraulic oils, and fuel-based media. Meets SAE and MIL-Spec standards for Dash 204 O-ring profiles. Not FDA approved; not suitable for food-contact or potable water applications where FDA-compliant elastomers are required.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified HVAC technician, plumber, or mechanical contractor. Always depressurize and isolate the system before removing or replacing any O-ring seal. Lubricate the O-ring with a compatible fluid or O-ring lubricant prior to installation to prevent tearing or twisting during assembly. Do not store O-rings near motors, electrical equipment, or in direct sunlight, as ozone and UV exposure degrade Buna-N compound over time.\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\u003eInside Diameter\u003c\/strong\u003e: 0.3750 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 0.6250 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1250 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 204\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 (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 Media\u003c\/strong\u003e: Petroleum Products\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFDA Approved\u003c\/strong\u003e: No\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: 100\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\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: ZMSCH70204\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51695162884402,"sku":"ZMSCH70204","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b35e0a5cab38cfc9e2e4bc4193476f66.jpg?v=1788331945","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70204-o-ring-dash-204-nitrile-buna-n","provider":"Voomi Supply","version":"1.0","type":"link"}