{"product_id":"value-collection-zmsch70261-o-ring-dash-261-nitrile-70","title":"Value Collection ZMSCH70261 O-ring Dash 261 Nitrile 70","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCH70261 is a Dash 261 O-ring manufactured from Nitrile Butadiene Rubber (Buna-N), the most widely used elastomer in fluid-sealing applications. It measures 6.75 inches inside diameter, 7 inches outside diameter, and 0.125 inches thick with a round cross-section profile. Hardness is rated at 70 Shore A, which falls in the hard range, providing excellent compression set resistance and strong tear and abrasion resistance. This O-ring is compatible with petroleum-based fluids and operates across a temperature range of -40 degrees F to 250 degrees F. It is installed by licensed plumbers, HVAC technicians, and maintenance mechanics in hydraulic, pneumatic, and fluid-handling assemblies.\u003c\/p\u003e\u003cp\u003eThis O-ring is suited for use in residential and commercial plumbing, HVAC refrigerant systems, hydraulic equipment, and industrial fluid-sealing applications where petroleum-product compatibility is required. The Dash 261 designation follows SAE and MIL-Spec standards, making it a standard cross-reference size across a wide range of OEM and aftermarket assemblies. Sold in packages of 10, it is appropriate for service stock or single-job use depending on application volume.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBuna-N (Nitrile Butadiene Rubber) construction with excellent resistance to petroleum products\u003c\/li\u003e\n\u003cli\u003e70 Shore A hardness rating for firm compression set and abrasion resistance\u003c\/li\u003e\n\u003cli\u003eTemperature range: -40 degrees F to 250 degrees F\u003c\/li\u003e\n\u003cli\u003eRound cross-section profile; Dash 261 standard sizing\u003c\/li\u003e\n\u003cli\u003eMeets SAE and MIL-Spec standards\u003c\/li\u003e\n\u003cli\u003eStore away from direct sunlight, ozone sources, and electrical motors to preserve elastomer integrity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with petroleum-based products; meets SAE and MIL-Spec standards for Dash 261 O-ring sizing. Designed as an OEM-style replacement or service seal for hydraulic, pneumatic, and fluid-handling assemblies requiring a 6.75-inch ID round-cross-section O-ring.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by licensed plumbers, HVAC technicians, or qualified maintenance mechanics. Always depressurize and de-energize the system before removing or installing seals. Lubricate the O-ring with a fluid compatible with Buna-N and the system medium prior to seating to prevent tearing during assembly. Do not expose the installed O-ring to ozone-generating equipment or direct UV light, as this degrades Buna-N elastomers over time.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 6.75 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\u003eDash Number\u003c\/strong\u003e: 261\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 Media\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: 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\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: ZMSCH70261\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51714306834738,"sku":"ZMSCH70261","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/23da99f8bb01718486d6ebb80cd16f17.jpg?v=1788499179","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70261-o-ring-dash-261-nitrile-70","provider":"Voomi Supply","version":"1.0","type":"link"}