{"product_id":"value-collection-zmsch3x28-o-ring-28mm-nbr-black-50-pack","title":"Value Collection ZMSCH3X28 O-ring 28mm Nbr Black 50-pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION ZMSCH3X28 is a round cross-section O-ring made from Nitrile Butadiene Rubber (NBR), also known as Buna-N. It measures 28mm inside diameter, 34mm outside diameter, and 3mm in thickness. NBR is the most widely used O-ring elastomer in trade applications, offering excellent resistance to petroleum-based fluids, strong compression set characteristics, and solid tear and abrasion resistance. Rated at 70 Shore hardness, this O-ring is classified as hard durometer. It handles a working temperature range of -40 degrees F to 250 degrees F. Each order includes a pack of 50 pieces.\u003c\/p\u003e\n\u003cp\u003eThis O-ring is suited for hydraulic systems, pneumatic assemblies, fuel handling equipment, and general plumbing or mechanical sealing applications where petroleum product exposure is expected. It is appropriate for both residential and light commercial installations. Plumbers, pipefitters, HVAC technicians, and industrial maintenance professionals routinely use Buna-N O-rings of this profile in valve bodies, pump housings, fittings, and fluid line connections. The black color and round cross section are standard for this elastomer type and simplify identification during service.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNitrile Butadiene Rubber (Buna-N) construction — excellent resistance to petroleum products and hydraulic fluids\u003c\/li\u003e\n  \u003cli\u003e70 Shore hardness (hard durometer) for reliable compression set and sealing force\u003c\/li\u003e\n  \u003cli\u003eWide temperature range: -40 degrees F to 250 degrees F\u003c\/li\u003e\n  \u003cli\u003eRound cross-section profile for standard gland and groove fitment\u003c\/li\u003e\n  \u003cli\u003eMeets SAE and MIL-Spec standards\u003c\/li\u003e\n  \u003cli\u003ePack of 50 pieces per order, minimum order quantity of 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with petroleum products and petroleum-based fluids. Meets SAE and MIL-Spec standards. Not FDA approved. Should not be stored in direct sunlight or near motors or electrical equipment that may generate ozone.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eO-rings of this type are installed by plumbers, pipefitters, and mechanical technicians. Depressurize and drain the system fully before replacing any O-ring in a fluid-carrying assembly. Lubricate the O-ring with a compatible fluid or assembly lubricant prior to installation to prevent tearing during seating. Avoid overstretching the O-ring during installation, as this can reduce effective sealing and shorten service life.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 28mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 34mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 3mm\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\u003eColor\u003c\/strong\u003e: Black\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 (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 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: 50 pieces\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31401503\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: ZMSCH3X28\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51698357862706,"sku":"ZMSCH3X28","price":21.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/43dbceaf7ee79f2ea7e56a33725f2e45.jpg?v=1788361645","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch3x28-o-ring-28mm-nbr-black-50-pack","provider":"Voomi Supply","version":"1.0","type":"link"}