{"product_id":"value-collection-zmsch70278-o-ring-dash-278-nitrile-nbr","title":"Value Collection ZMSCH70278 O-ring Dash 278 Nitrile Nbr","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION ZMSCH70278 is a Dash 278 O-ring manufactured from Nitrile Butadiene Rubber (Buna-N), the most widely used elastomer in fluid sealing applications. It measures 12 inches inside diameter, 12.25 inches outside diameter, and 0.125 inches thick with a round cross-section profile. Rated at Shore 70 hardness, this O-ring delivers firm compression set resistance alongside solid tear and abrasion resistance. It is suited for hydraulic, pneumatic, and fluid system assemblies where petroleum-based media are present. Licensed plumbers, pipefitters, and maintenance technicians working on large-bore sealing applications are the typical installers.\u003c\/p\u003e\n\u003cp\u003eThis O-ring is designed for use in applications involving petroleum products, oils, fuels, and hydraulic fluids. Its temperature range of -40 degrees F to 250 degrees F makes it a practical choice for both outdoor and mechanical room installations. The large 12-inch bore size suits industrial valves, pumps, flanges, and large-diameter pipe fittings commonly found in commercial plumbing, HVAC chiller systems, and industrial fluid handling equipment. Each package contains 5 O-rings. It carries SAE and MIL-Spec standards recognition. Note that this part is not FDA approved and should not be used in potable water or food-contact applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBuna-N (Nitrile Butadiene Rubber) construction offers excellent resistance to petroleum products, oils, and hydraulic fluids\u003c\/li\u003e\n  \u003cli\u003eShore 70 hardness rating provides firm sealing force with reliable compression set performance\u003c\/li\u003e\n  \u003cli\u003eRound cross-section profile ensures consistent seating in standard O-ring grooves\u003c\/li\u003e\n  \u003cli\u003eOperating range of -40 degrees F to 250 degrees F covers most mechanical and HVAC service environments\u003c\/li\u003e\n  \u003cli\u003eMeets SAE and MIL-Spec standards for sealing component quality\u003c\/li\u003e\n  \u003cli\u003ePackaged in quantities of 5 to support service inventory and multi-unit jobs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or service O-ring for large-bore valves, pumps, flanges, and fluid system components requiring a Dash 278 O-ring with a 12-inch inside diameter and 0.125-inch cross-section. Compatible with petroleum-based media. Not compatible with ozone-generating environments or direct sunlight storage. Not FDA approved; not suitable for potable water or food-grade contact applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified plumber, pipefitter, or mechanical technician following applicable IPC and ASME sealing standards. Shut down and depressurize the system fully before removing the old O-ring or installing the new one. Inspect the groove for burrs, corrosion, or debris before seating the new ring. Do not store unused O-rings near motors, electrical equipment, or in direct sunlight, as ozone and UV exposure degrade Buna-N material over time.\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: 278\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 12.25 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: Shore 70 (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\u003eFDA Approved\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: SAE, MIL-Spec\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\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: ZMSCH70278\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51699272483122,"sku":"ZMSCH70278","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d07c30dd8efcd500b8bb1759bdfbae86_8cf6e71f-6fcd-438c-8bc3-326726311ff0.jpg?v=1788374414","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70278-o-ring-dash-278-nitrile-nbr","provider":"Voomi Supply","version":"1.0","type":"link"}