{"product_id":"value-collection-zmsch90328-o-ring-dash-328-nbr-90d","title":"Value Collection ZMSCH90328 O-ring Dash 328 Nbr 90D","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCH90328 is a Dash 328 O-ring manufactured from Nitrile Butadiene Rubber (Buna-N), the most widely used elastomer in fluid sealing applications. It measures 1.875 inches inside diameter, 2.25 inches outside diameter, and 0.1875 inches thick with a round cross section. Rated at 90 durometer (Extra Hard), this O-ring delivers excellent compression set resistance along with strong tear and abrasion resistance. The temperature range spans -40 to 250 degrees F, making it suitable for a broad range of service conditions. Licensed plumbers, HVAC technicians, and fluid system technicians routinely specify Buna-N O-rings for petroleum-based fluid sealing across hydraulic, pneumatic, and refrigeration applications.\u003c\/p\u003e\u003cp\u003eThis O-ring is used in residential and commercial systems where petroleum-based fluids are present. Typical applications include hydraulic cylinder rod and piston seals, valve stem packing, pump shaft seals, and fluid fittings in HVAC and plumbing assemblies. The Buna-N compound provides excellent resistance to petroleum products, oils, fuels, and many hydraulic fluids. This part is not recommended for use with ozone-rich environments, direct sunlight exposure, or near electrical equipment that may generate ozone. It conforms to SAE and MIL-Spec standards.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBuna-N (NBR) compound offers excellent resistance to petroleum products, oils, and hydraulic fluids\u003c\/li\u003e\n\u003cli\u003e90 durometer Extra Hard rating provides strong compression set and dimensional stability under load\u003c\/li\u003e\n\u003cli\u003eOperating temperature range of -40 to 250 degrees F suits a wide variety of service environments\u003c\/li\u003e\n\u003cli\u003eRound cross section in standard Dash 328 sizing for straightforward groove fitment\u003c\/li\u003e\n\u003cli\u003eConforms to SAE and MIL-Spec standards\u003c\/li\u003e\n\u003cli\u003ePackage quantity of 50 units supports service stock and fleet maintenance needs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with petroleum products, hydraulic oils, fuels, and similar fluid media in systems requiring a standard Dash 328 O-ring groove. Compatible materials include petroleum-based fluids; not rated for use with ozone, strong acids, ketones, or esters.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified plumber, hydraulic technician, or HVAC mechanic following applicable system shutdown and pressure relief procedures before disassembly. Ensure the mating groove is clean and free of debris before seating the O-ring. Lightly lubricate the O-ring with a compatible fluid or O-ring lubricant during installation to reduce the risk of twisting or nicking. Do not store O-rings in direct sunlight or near motors and other electrical equipment that generate ozone, as this degrades NBR compounds over time.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Nitrile Butadiene Rubber (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 328\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 1.875 inches (40.64 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 2.25 inches (57.15 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1875 inches (5.33 mm)\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: 90 Durometer (Extra 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 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: 50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.3 pounds\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: ZMSCH90328\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51728886759730,"sku":"ZMSCH90328","price":18.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ac827b51579a83a7abaa046b490e5b7f.jpg?v=1788697397","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch90328-o-ring-dash-328-nbr-90d","provider":"Voomi Supply","version":"1.0","type":"link"}