{"product_id":"value-collection-zmsch70281-o-ring-dash-281-nbr-70","title":"Value Collection ZMSCH70281 O-ring Dash 281 Nbr 70","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCH70281 is a Dash 281 O-ring made from Nitrile Butadiene Rubber (Buna-N), one of the most widely used elastomers in fluid sealing applications. It measures 15 inches inside diameter, 15.25 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 retention, and solid tear and abrasion resistance. It is installed by HVAC technicians, plumbers, and industrial service professionals wherever a reliable, petroleum-compatible seal is required.\u003c\/p\u003e\u003cp\u003eThis O-ring is suited for use in HVAC equipment, plumbing systems, hydraulic assemblies, and general industrial fluid handling where petroleum-product compatibility is required. Its large 15-inch inside diameter makes it appropriate for sealing flanges, housings, manifolds, or large-bore connections in both residential and commercial service environments. The working temperature range of -40 degrees F to 250 degrees F covers most standard mechanical and HVAC service conditions. It meets SAE and MIL-Spec standards. Note that this elastomer should not be stored in direct sunlight or near motors or other electrical equipment that may generate ozone.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBuna-N (Nitrile Butadiene Rubber) material with excellent resistance to petroleum products\u003c\/li\u003e\n\u003cli\u003e15 inches inside diameter and 15.25 inches outside diameter with a round cross section\u003c\/li\u003e\n\u003cli\u003e0.125 inches cross-section thickness, Dash 281 designation\u003c\/li\u003e\n\u003cli\u003eShore A hardness of 70 for a hard, durable compression seal\u003c\/li\u003e\n\u003cli\u003eWorking temperature range: -40 degrees F to 250 degrees F\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-based fluids and products. Designed as a standard Dash 281 O-ring replacement for flanges, housings, and large-bore connections requiring a 15-inch ID Buna-N seal conforming to SAE and MIL-Spec O-ring standards.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed technician or qualified service professional. Before installation, shut down the system, relieve all pressure, and drain any residual fluid from the assembly. Inspect the seating groove for damage, debris, or corrosion before seating the O-ring. Do not store this O-ring near motors, ozone-generating equipment, or in direct sunlight, as ozone exposure degrades Buna-N elastomer.\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: 281\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 15 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 15.25 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: 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 Fluids\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: 2\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: ZMSCH70281\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51692975489330,"sku":"ZMSCH70281","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a1cb72ef8d7e841b63b48d34d58d651c.jpg?v=1788305711","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70281-o-ring-dash-281-nbr-70","provider":"Voomi Supply","version":"1.0","type":"link"}