{"product_id":"value-collection-zmsch70md121-o-ring-dash-121-nbr-10-pack","title":"Value Collection ZMSCH70MD121 O-ring Dash 121 Nbr 10-pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCH70MD121 is a Dash 121 nitrile butadiene rubber (NBR) O-ring with a 1.490-inch inside diameter, 1.250-inch outside diameter, and a 0.094-inch thick round cross section. NBR is the most widely used O-ring elastomer in industrial and fluid-system applications, offering excellent resistance to petroleum-based fluids, strong compression set resistance, and solid tear and abrasion resistance. This O-ring carries a Shore A hardness rating of 70 and operates reliably from -40 degrees F to 250 degrees F. Each order includes a pack of 10 O-rings. Plumbers, HVAC technicians, and fluid-system mechanics install this type of seal in hydraulic fittings, pneumatic assemblies, fuel lines, and similar connections requiring a dependable static or dynamic face seal.\u003c\/p\u003e\u003cp\u003eThis O-ring is suited for residential and commercial applications wherever a Dash 121 size is specified. It is compatible with petroleum products and petroleum-based lubricants and fluids, making it appropriate for fuel system repairs, hydraulic manifolds, pump housings, and valve bodies. It is not recommended for exposure to ozone, direct sunlight during storage, or environments where ozone-generating equipment such as motors or transformers is present. This is a non-FDA-approved compound; a metal-detectable FDA note is listed in the supplier data for reference, but the FDA Approved designation for this specific part is listed as No.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDash 121 sizing: 1.490 inches ID, 1.250 inches OD, 0.094 inches thick round cross section\u003c\/li\u003e\n\u003cli\u003eNitrile butadiene rubber construction with Shore A 70 hardness for a balance of flexibility and sealing force\u003c\/li\u003e\n\u003cli\u003eOperating temperature range of -40 degrees F to 250 degrees F\u003c\/li\u003e\n\u003cli\u003eExcellent resistance to petroleum products, hydraulic oils, and fuel-based media\u003c\/li\u003e\n\u003cli\u003eStrong compression set, tear, and abrasion resistance for reliable long-term sealing\u003c\/li\u003e\n\u003cli\u003ePack of 10 O-rings per order, sold in single-pack minimum order quantity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard Dash 121 O-ring replacement compatible with petroleum-product fluid systems including hydraulic, pneumatic, and fuel-line assemblies that specify a 1.490-inch ID nitrile O-ring seal.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eDepressurize and drain the system completely before removing the old O-ring and installing the replacement. Clean the groove and mating surfaces to remove debris, old sealant, or residual material before seating the new O-ring. Lightly lubricate the O-ring with a compatible petroleum-based lubricant to ease installation and reduce the risk of rolling or twisting in the groove. Store unused O-rings away from direct sunlight, ozone sources, and electrical equipment that may generate ozone to preserve elastomer integrity.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Nitrile Butadiene Rubber (NBR)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 121\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 1.490 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 1.250 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.094 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross Section Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShore A Hardness\u003c\/strong\u003e: 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\u003ePackage Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.55 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: ZMSCH70MD121\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51690664067378,"sku":"ZMSCH70MD121","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d07c30dd8efcd500b8bb1759bdfbae86_c95e5f7c-5e12-4531-a668-0878c1d55c08.jpg?v=1788273581","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70md121-o-ring-dash-121-nbr-10-pack","provider":"Voomi Supply","version":"1.0","type":"link"}