{"product_id":"value-collection-zmsch70md261-o-ring-dash-261-nbr","title":"Value Collection ZMSCH70MD261 O-ring Dash 261 Nbr","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION ZMSCH70MD261 is a Dash 261 O-ring manufactured from Nitrile Butadiene Rubber (Buna-N), the most widely used elastomer in industrial and mechanical sealing applications. It measures 6.734 inches inside diameter, 7 inches outside diameter, and 0.125 inches thick, with a round cross section and a Shore A hardness rating of 70. This O-ring delivers excellent resistance to petroleum-based fluids, strong compression set performance, and reliable tear and abrasion resistance. It is installed by plumbers, HVAC technicians, and mechanical contractors as a static or dynamic face seal in fluid-handling systems operating between -40 degrees F and 250 degrees F.\u003c\/p\u003e\n\u003cp\u003eThis O-ring is suited for use in residential and commercial plumbing, HVAC refrigerant and oil circuits, hydraulic systems, and other assemblies where contact with petroleum products is expected. Its Buna-N construction makes it a standard replacement choice in pumps, valves, fittings, and pipe flanges across a broad range of trade and industrial service scenarios. The part is sold in packages of 2 and carries a Metal Detectable FDA additional designation, though it is not FDA approved for direct food contact use.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBuna-N (Nitrile Butadiene Rubber) construction — excellent resistance to petroleum products, oils, and fuels\u003c\/li\u003e\n  \u003cli\u003eDash 261 standard sizing: 6.734 inches ID, 7 inches OD, 0.125 inches thick\u003c\/li\u003e\n  \u003cli\u003eShore A hardness of 70 — rated Hard, providing reliable compression set performance\u003c\/li\u003e\n  \u003cli\u003eRound cross section for consistent sealing contact and easy installation\u003c\/li\u003e\n  \u003cli\u003eOperating temperature range: -40 degrees F to 250 degrees F\u003c\/li\u003e\n  \u003cli\u003eSold in packages of 2; minimum order quantity of 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement O-ring for Dash 261 groove dimensions in pumps, valves, flanges, and fluid-handling equipment where Buna-N material and petroleum product compatibility are required. Compatible with petroleum-based fluids. Not recommended for ozone-rich environments, direct sunlight exposure, or proximity to motors and other electrical equipment that may generate ozone.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by licensed plumbers, HVAC technicians, or mechanical contractors. Shut off fluid supply and relieve system pressure fully before removing the old O-ring or opening any fitting. Clean the groove of debris and inspect for wear or damage before seating the new O-ring. Avoid twisting or pinching the ring during installation, and do not store unused O-rings in direct sunlight or near ozone-generating equipment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Nitrile Butadiene Rubber (Buna-N)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 261\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 6.734 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 7 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.125 inches\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 (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\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\u003ePackage Quantity\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 6.16 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: ZMSCH70MD261\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51703485432114,"sku":"ZMSCH70MD261","price":19.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d07c30dd8efcd500b8bb1759bdfbae86_26d7c443-65dc-4c6c-b940-5c12183ba0ec.jpg?v=1788416930","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70md261-o-ring-dash-261-nbr","provider":"Voomi Supply","version":"1.0","type":"link"}