{"product_id":"value-collection-zmsch70329-o-ring-dash-329-nitrile-nbr","title":"Value Collection ZMSCH70329 O-ring Dash 329 Nitrile Nbr","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION ZMSCH70329 is a Dash 329 Nitrile Butadiene Rubber (NBR) O-ring with a round cross section, sized at 2.0000 inches inside diameter and 2.3750 inches outside diameter with a 0.1875-inch thickness. Rated at 70 Shore A hardness, this O-ring is the most widely used elastomer in fluid-sealing applications. NBR compound delivers excellent resistance to petroleum-based fluids, strong compression set performance, and reliable tear and abrasion resistance. It is suitable for service temperatures ranging from -40 degrees F to 250 degrees F. HVAC technicians, plumbers, and industrial maintenance pros install this part in systems handling oil, fuel, hydraulic fluid, and similar petroleum products.\u003c\/p\u003e\n\u003cp\u003eThis O-ring is appropriate for residential and commercial applications where petroleum-based fluid compatibility is required. Common installation scenarios include pump seals, valve bodies, fittings, and hydraulic or pneumatic assemblies. The Dash 329 designation follows standard AS568 sizing, making it a straightforward drop-in for existing Dash 329 groove specifications. It is not recommended for exposure to ozone, strong acids, or direct sunlight during storage, and should be kept away from motors or other equipment that may generate ozone.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNitrile Butadiene Rubber (NBR\/Buna-N) construction — most widely used O-ring elastomer for petroleum service\u003c\/li\u003e\n  \u003cli\u003e2.0000-inch inside diameter x 2.3750-inch outside diameter x 0.1875-inch thick, Dash 329 standard sizing\u003c\/li\u003e\n  \u003cli\u003e70 Shore A hardness rating — classified as hard durometer for compression-set resistance\u003c\/li\u003e\n  \u003cli\u003eOperating range of -40 degrees F to 250 degrees F for broad service conditions\u003c\/li\u003e\n  \u003cli\u003eRound cross section for reliable seating in standard AS568 Dash 329 grooves\u003c\/li\u003e\n  \u003cli\u003eMeets SAE and MIL-Spec standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard Dash 329 replacement O-ring compatible with petroleum products, hydraulic fluids, and similar media. Fits any application specifying a Dash 329 groove per AS568 sizing. Not compatible with ozone-generating environments, strong oxidizing agents, or ketone-based fluids.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by licensed plumbers, HVAC technicians, or industrial maintenance mechanics during pump, valve, or fitting service. Relieve all system pressure and drain the fluid circuit before removing the old O-ring. Lightly lubricate the replacement O-ring with a compatible petroleum-based grease before seating to prevent nicking or rolling during assembly. Do not store unused O-rings in direct sunlight or near motors and electrical equipment that may generate ozone, as this degrades NBR compound over time.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Nitrile Butadiene Rubber (Buna-N \/ NBR)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 329\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 2.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 2.3750 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 (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\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: 50\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: ZMSCH70329\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51690838229298,"sku":"ZMSCH70329","price":15.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cbb76e93a0d4a433a487c9bf48dcb420.jpg?v=1788276007","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70329-o-ring-dash-329-nitrile-nbr","provider":"Voomi Supply","version":"1.0","type":"link"}