{"product_id":"value-collection-zmsch70120-o-ring-dash-120-buna-n-70-durometer","title":"Value Collection ZMSCH70120 O-ring Dash 120 Buna-n 70 Durometer","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION ZMSCH70120 is a Dash 120 Nitrile Butadiene Rubber (Buna-N) O-ring with a round cross section, designed for static and dynamic sealing applications across HVAC, plumbing, and general mechanical systems. It measures 1 inch inside diameter, 1.188 inches outside diameter, and 0.0937 inches thick. The 70-durometer hardness rating delivers a hard, resilient seal with excellent compression set resistance, making it reliable under sustained clamping loads. This O-ring resists petroleum-based fluids, oils, and hydraulic media. Licensed tradespeople and maintenance technicians install this type of seal during equipment overhauls, valve rebuilds, and fitting replacements.\u003c\/p\u003e\n\u003cp\u003eThis O-ring is suited for residential and light commercial HVAC components, refrigeration fittings, plumbing valves, and hydraulic assemblies where petroleum-product compatibility is required. The Buna-N compound performs across a temperature range of -40 degrees F to 250 degrees F, covering most mechanical and HVAC service environments. It conforms to SAE and MIL-Spec standards, making it appropriate for a wide range of trade and industrial replacement applications. Sold in packages of 100 units, it is well suited for shop stock or service-van inventory.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBuna-N (Nitrile Butadiene Rubber) compound — the most widely used O-ring elastomer for petroleum-fluid compatibility\u003c\/li\u003e\n  \u003cli\u003e70-durometer hardness provides firm sealing under compression without excessive deformation\u003c\/li\u003e\n  \u003cli\u003eRated from -40 degrees F to 250 degrees F for broad service-temperature coverage\u003c\/li\u003e\n  \u003cli\u003eRound cross-section profile for consistent seating in standard O-ring grooves\u003c\/li\u003e\n  \u003cli\u003eMeets SAE and MIL-Spec standards\u003c\/li\u003e\n  \u003cli\u003ePackage quantity of 100 units supports shop-stock and bulk replacement needs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard Dash 120 O-ring replacement compatible with petroleum-based media, including oils, hydraulic fluids, and fuel-system components. Not recommended for use with ozone, direct sunlight exposure, or near motors and electrical equipment that generate ozone. Not FDA approved.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by licensed HVAC technicians, plumbers, or mechanical maintenance personnel. Always relieve system pressure and shut off fluid supply before removing or replacing O-rings. Inspect the seating groove for nicks, corrosion, or debris before installing the new ring. Apply a thin film of compatible lubricant to the O-ring prior to assembly to prevent tearing during installation — avoid petroleum-incompatible lubricants with Buna-N seals. Store unused O-rings away from direct sunlight, ozone sources, and electrical equipment to preserve elastomer integrity.\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: 120\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 1.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 1.1880 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.0937 inches (3\/32 inch)\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\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 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\u003eStandards\u003c\/strong\u003e: SAE, MIL-Spec\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFDA Approved\u003c\/strong\u003e: No\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: 0.18 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: ZMSCH70120\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51723169038642,"sku":"ZMSCH70120","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f08ab4cdb54be784ad3dfaaa53849ea7.jpg?v=1788601562","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70120-o-ring-dash-120-buna-n-70-durometer","provider":"Voomi Supply","version":"1.0","type":"link"}