{"product_id":"value-collection-zmsce70312-epdm-o-ring-dash-312-pack-70","title":"Value Collection ZMSCE70312 Epdm O-ring Dash 312 Pack 70","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCE70312 is a Dash 312 EPDM O-ring designed for static and dynamic sealing applications where exposure to hot water, steam, and phosphate ester hydraulic fluids is expected. Measuring 0.625 inches inside diameter, 1.000 inches outside diameter, and 0.1875 inches thick, this round cross-section ring carries a Shore A hardness rating of 70, placing it in the hard durometer range. EPDM construction provides reliable chemical resistance across a working temperature range of -65 degrees F to 300 degrees F. Each order includes a package quantity of 70 rings, making it practical for shop stock or field kit replenishment.\u003c\/p\u003e\u003cp\u003eThis O-ring is suited for plumbing, HVAC, and hydraulic maintenance tasks where hot water service, steam lines, or phosphate ester fluid systems are involved. It is also noted for excellent resistance to Skydrol fluids used in commercial aircraft hydraulic systems, making it a relevant choice for aviation ground-support and MRO applications. The Dash 312 designation follows standard AS568 sizing, allowing straightforward cross-referencing on seal kits and service manuals. Licensed plumbers, HVAC technicians, hydraulic system techs, and MRO mechanics are the primary installers.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eEPDM material rated for hot water, steam, and phosphate ester hydraulic fluids\u003c\/li\u003e\n\u003cli\u003eExcellent resistance to Skydrol fluids used in commercial aircraft hydraulic systems\u003c\/li\u003e\n\u003cli\u003e70 Shore A hardness for firm compression set resistance in high-cycle sealing applications\u003c\/li\u003e\n\u003cli\u003eWide service temperature range: -65 degrees F to 300 degrees F\u003c\/li\u003e\n\u003cli\u003eRound cross-section, Dash 312 per AS568 standard sizing\u003c\/li\u003e\n\u003cli\u003ePackage quantity of 70 rings for efficient shop stocking\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible sealing media include hot water, steam, and phosphate ester type hydraulic fluids. Suitable for applications specifying a Dash 312 round cross-section O-ring in EPDM material with 70 durometer hardness.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eDe-energize or depressurize the system fully before removing or installing any O-ring seal. Inspect the groove and mating surfaces for nicks, burrs, or contamination prior to installation. Lubricate the ring with a compatible lubricant that is approved for use with EPDM and the system fluid involved — petroleum-based greases are not compatible with EPDM and must not be used. Follow applicable plumbing or hydraulic system codes and manufacturer torque specifications for the fitting or housing being sealed.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: EPDM (Ethylene Propylene Diene Monomer)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 312\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 0.6250 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 1.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1875 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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Rating\u003c\/strong\u003e: Hard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Working Temperature\u003c\/strong\u003e: -65 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Temperature\u003c\/strong\u003e: 300 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Fluids\u003c\/strong\u003e: Hot water, steam, phosphate ester hydraulic fluids, Skydrol\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: 70\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: ZMSCE70312\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51695758016818,"sku":"ZMSCE70312","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d07c30dd8efcd500b8bb1759bdfbae86_1183f829-b7da-41d9-98c2-d6d92a443726.jpg?v=1788338051","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsce70312-epdm-o-ring-dash-312-pack-70","provider":"Voomi Supply","version":"1.0","type":"link"}