{"product_id":"value-collection-zmsch70042-o-ring-dash-042-nbr-70","title":"Value Collection ZMSCH70042 O-ring Dash 042 Nbr 70","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCH70042 is a Dash 042 nitrile butadiene rubber (NBR) O-ring used to create leak-free seals in fluid and pneumatic systems. It measures 3.25 inches inside diameter, 3.375 inches outside diameter, and 0.0625 inches thick with a round cross section. The Buna-N elastomer compound delivers 70 Shore A hardness, strong compression set resistance, and reliable performance across a working temperature range of -40 degrees F to 250 degrees F. Licensed plumbers, HVAC technicians, and maintenance mechanics install this type of seal in hydraulic fittings, valves, pumps, and fluid-line connections where petroleum-based media are present.\u003c\/p\u003e\u003cp\u003eThis O-ring is suited for residential and commercial applications involving petroleum products, hydraulic fluids, and oils. Its SAE and MIL-Spec compliance makes it appropriate for both general trade service and maintenance work requiring standardized sealing components. The Dash 042 designation follows the AS568 standard sizing series, allowing straightforward cross-referencing when replacing worn or damaged seals in existing assemblies. Sold in a package quantity of 100 units, it is practical for shops stocking common seal sizes for routine service calls.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBuna-N (NBR) elastomer with excellent resistance to petroleum products, hydraulic fluids, and oils\u003c\/li\u003e\n\u003cli\u003e70 Shore A hardness rating for reliable compression set performance\u003c\/li\u003e\n\u003cli\u003eWide service temperature range: -40 degrees F to 250 degrees F\u003c\/li\u003e\n\u003cli\u003eRound cross section, 0.0625 inches thick, Dash 042 standard sizing\u003c\/li\u003e\n\u003cli\u003eTear and abrasion resistant construction\u003c\/li\u003e\n\u003cli\u003eMeets SAE and MIL-Spec standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with petroleum products and petroleum-based hydraulic fluids. Designed as a standard Dash 042 replacement O-ring for use in valves, pumps, fittings, and fluid-line assemblies where Buna-N elastomer is the specified material. Not recommended for exposure to ozone, direct sunlight during storage, or environments near motors or electrical equipment that generate ozone.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by licensed plumbers, HVAC technicians, or qualified maintenance mechanics. Shut off and depressurize the system completely before removing or installing any sealing components. Lubricate the O-ring with a compatible fluid or lubricant prior to installation to prevent pinching or tearing during assembly. Avoid storing unused O-rings in direct sunlight or near ozone-generating equipment such as motors or electrical devices.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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: 042\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 3.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 3.375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.0625 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\u003eColor\u003c\/strong\u003e: Black\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: 100\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: ZMSCH70042\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51714959409458,"sku":"ZMSCH70042","price":19.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bdbda41f8bf3db2db77fe579abdafbb2.jpg?v=1788508358","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70042-o-ring-dash-042-nbr-70","provider":"Voomi Supply","version":"1.0","type":"link"}