{"product_id":"value-collection-zmsch70209-o-ring-dash-209-buna-n","title":"Value Collection ZMSCH70209 O-ring Dash 209 Buna-n","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCH70209 is a Dash 209 Nitrile Butadiene Rubber (Buna-N) O-ring used to create static and dynamic seals in fluid and pneumatic systems. With an inside diameter of 0.688 inches, an outside diameter of 0.938 inches, and a thickness of 0.125 inches, this O-ring follows standard dash sizing for straightforward replacement and sourcing. The round cross-section and 70-durometer hardness provide reliable compression set resistance and dimensional stability under working loads. It is rated for service from -40 degrees F to 250 degrees F and is compatible with petroleum-based fluids, making it one of the most commonly specified elastomers in the trade. Licensed HVAC technicians, plumbers, and equipment service techs regularly stock Buna-N O-rings for field repairs.\u003c\/p\u003e\u003cp\u003eThis O-ring is suited for use in HVAC refrigeration fittings, plumbing valves, hydraulic fittings, pneumatic connectors, and general mechanical assemblies where petroleum product compatibility is required. It meets SAE and MIL-Spec standards, supporting both commercial and military-grade maintenance applications. Sold in a package quantity of 100, it is practical for service fleets, shop stock, and high-volume repair operations. The black Buna-N construction resists tear and abrasion in demanding service environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBuna-N (Nitrile Butadiene Rubber) material with excellent resistance to petroleum products\u003c\/li\u003e\n\u003cli\u003e70-durometer hardness rating for hard compression set performance\u003c\/li\u003e\n\u003cli\u003eRound cross-section for consistent sealing across standard groove profiles\u003c\/li\u003e\n\u003cli\u003eTemperature range of -40 degrees F to 250 degrees F\u003c\/li\u003e\n\u003cli\u003eMeets SAE and MIL-Spec standards\u003c\/li\u003e\n\u003cli\u003ePackage quantity of 100 units for shop stock and fleet use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with petroleum-based products and fluids. Designed as a standard Dash 209 O-ring replacement for use in hydraulic, pneumatic, plumbing, and HVAC systems requiring Buna-N elastomer seals.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by licensed HVAC technicians, plumbers, or mechanical service professionals. Always depressurize and drain the system before removing or replacing O-rings to prevent injury or fluid release. Lightly lubricate the O-ring with a compatible fluid or grease before seating to reduce the risk of twisting or tearing during assembly. Store unused O-rings away from direct sunlight, ozone sources, and electrical motors to maintain elastomer integrity.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 0.688 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 0.938 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: 209\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 Durometer (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 Material\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: 0.02 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: ZMSCH70209\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51710500012338,"sku":"ZMSCH70209","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cedfa9ff6f94659d6d1029cf8f9dccbe.jpg?v=1788467650","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70209-o-ring-dash-209-buna-n","provider":"Voomi Supply","version":"1.0","type":"link"}