{"product_id":"value-collection-zmsch70212-o-ring-dash-212-buna-n-100-pack","title":"Value Collection ZMSCH70212 O-ring Dash 212 Buna-n 100 Pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCH70212 is a Dash 212 O-ring manufactured from Nitrile Butadiene Rubber (Buna-N), the most widely used elastomer in fluid sealing applications. It measures 0.875 inches inside diameter, 1.125 inches outside diameter, and 0.125 inches in cross-section thickness with a round cross-section profile. Rated at 70 Shore A durometer hardness, this O-ring delivers firm sealing force while maintaining reliable compression set performance. It handles temperatures from -40 degrees F to 250 degrees F and is compatible with petroleum-based fluids. HVAC technicians, plumbers, and hydraulic system mechanics install these O-rings in fittings, valves, pumps, and fluid connectors throughout residential and commercial systems.\u003c\/p\u003e\u003cp\u003eBuna-N O-rings are a standard consumable across HVAC refrigerant and oil circuits, plumbing shutoff valves, hydraulic fittings, and pneumatic assemblies where petroleum-fluid exposure is expected. The Dash 212 designation is a standardized sizing reference used by technicians to identify and cross-reference replacement O-rings across multiple equipment manufacturers. This part ships in a quantity of 100 units per package, making it practical for service vans, shop stock, and maintenance kits where frequent O-ring replacement is routine.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBuna-N (Nitrile Butadiene Rubber) material — excellent resistance to petroleum products, oils, and fuels\u003c\/li\u003e\n\u003cli\u003e70 Shore A hardness rating — hard enough for positive sealing under sustained compression\u003c\/li\u003e\n\u003cli\u003eOperating temperature range of -40 degrees F to 250 degrees F\u003c\/li\u003e\n\u003cli\u003eRound cross-section with 0.125 inches thickness — standard Dash 212 geometry\u003c\/li\u003e\n\u003cli\u003eGood tear and abrasion resistance for dynamic and static sealing applications\u003c\/li\u003e\n\u003cli\u003eMeets SAE and MIL-Spec standards\u003c\/li\u003e\n\u003cli\u003ePackage quantity of 100 units for shop stock or service kit replenishment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with petroleum products and petroleum-based hydraulic fluids. Conforms to SAE and MIL-Spec standards for Dash 212 O-ring sizing. Not recommended for exposure to direct sunlight during storage, or proximity to motors and electrical equipment that may generate ozone. Not FDA approved.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eO-ring replacement is performed by licensed HVAC technicians, plumbers, and hydraulic mechanics depending on the system. Always depressurize and isolate the system — shut off fluid supply and relieve all line pressure — before removing any fitting or valve containing an O-ring. Inspect the mating groove and seating surface for scoring or corrosion before installing the replacement. Lightly lubricating the O-ring with a compatible fluid or O-ring lubricant during installation helps prevent rolling or tearing during assembly.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 0.875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 1.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness (Cross Section)\u003c\/strong\u003e: 0.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 212\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: Black\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\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: 0.28 pounds\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: ZMSCH70212\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51691411276082,"sku":"ZMSCH70212","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d3f9b2ab8ddcfa386618f26df19ec13e.jpg?v=1788284700","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70212-o-ring-dash-212-buna-n-100-pack","provider":"Voomi Supply","version":"1.0","type":"link"}