{"product_id":"value-collection-zmsch70352-o-ring-dash-352-nbr-70-duro-5-pack","title":"Value Collection ZMSCH70352 O-ring Dash 352 Nbr 70 Duro 5-pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCH70352 is a Dash 352 Nitrile Butadiene Rubber (NBR) O-ring with a 4.875-inch inside diameter, 5.25-inch outside diameter, and 0.1875-inch cross-section thickness. Rated at 70 Shore A hardness, this round-cross-section O-ring is designed for static and dynamic sealing applications in systems that handle petroleum-based fluids. It is commonly installed by plumbers, HVAC technicians, and industrial service professionals where reliable fluid sealing is required. The NBR compound delivers excellent resistance to petroleum products along with strong compression set and tear resistance.\u003c\/p\u003e\u003cp\u003eThis O-ring is suited for use in hydraulic systems, pneumatic assemblies, pumps, valves, and fluid fittings that contact petroleum-based media. It performs across a wide service temperature range of -40 degrees F to 250 degrees F, making it appropriate for both refrigeration-adjacent mechanical systems and general plumbing and industrial applications. The package contains 5 O-rings, which supports small-batch service calls or stocking for repeat maintenance tasks. Avoid storing unused O-rings in direct sunlight or near motors and electrical equipment that may generate ozone, as ozone exposure degrades NBR compounds.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDash 352 dimensioning: 4.875 inches ID, 5.25 inches OD, 0.1875 inches thick\u003c\/li\u003e\n\u003cli\u003eNitrile Butadiene Rubber (Buna-N) compound with 70 Shore A hardness rating\u003c\/li\u003e\n\u003cli\u003eExcellent resistance to petroleum products, oils, and hydraulic fluids\u003c\/li\u003e\n\u003cli\u003eOperating temperature range: -40 degrees F to 250 degrees F\u003c\/li\u003e\n\u003cli\u003eRound cross-section for consistent seating in standard O-ring grooves\u003c\/li\u003e\n\u003cli\u003eMeets SAE and MIL-Spec standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for sealing applications in systems handling petroleum products; compatible with hydraulic, pneumatic, and fluid-system components requiring a Dash 352 O-ring per SAE and MIL-Spec dimensional standards.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by plumbers, HVAC technicians, or industrial mechanics during pump, valve, or fitting service. Always depressurize and drain the system before removing or installing O-rings. Lubricate the O-ring with a compatible fluid or grease before seating to prevent tearing during assembly. Do not use petroleum-incompatible lubricants, as they can cause NBR to swell and degrade the seal.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 4.875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 5.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness (Cross Section)\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 352\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Nitrile Butadiene Rubber (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: 70 Shore A (Hard)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross Section Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Black\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\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: 5\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: ZMSCH70352\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51720601993522,"sku":"ZMSCH70352","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/738c189716cdd919ffe562c83bc1f7de.jpg?v=1788566755","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70352-o-ring-dash-352-nbr-70-duro-5-pack","provider":"Voomi Supply","version":"1.0","type":"link"}