{"product_id":"value-collection-zmscvb75139-viton-o-ring-dash-139","title":"Value Collection ZMSCVB75139 Viton O-ring Dash 139","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCVB75139 is a Dash 139 Viton fluoroelastomer O-ring designed for static and dynamic sealing applications in fluid and gas handling systems. With a 2.188-inch inside diameter, 2.375-inch outside diameter, and a 0.094-inch cross-section thickness, this O-ring provides a reliable seal in systems exposed to petroleum products, high temperatures, and aggressive chemical environments. The Brown fluoroelastomer compound carries a Shore A hardness rating of 75 and is rated for continuous service from -15 degrees F to 400 degrees F. Sold in a package quantity of 10, it is a common consumable stocked by HVAC, plumbing, and industrial maintenance professionals.\u003c\/p\u003e\u003cp\u003eThis O-ring is suited for use in petroleum product lines, fuel systems, hydraulic circuits, and chemical transfer applications where standard Buna-N or EPDM compounds lack sufficient temperature or chemical resistance. Its round cross-section and standard Dash 139 sizing make it a drop-in fit wherever that dash number is called out in OEM or MRO specifications. Low gas permeability and suitability for vacuum service extend its usefulness to refrigeration and vacuum pump applications common in HVAC service work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFluoroelastomer (Viton-type) compound with good resistance to petroleum products and wide chemical compatibility\u003c\/li\u003e\n\u003cli\u003eOperating temperature range of -15 degrees F to 400 degrees F for high-heat service environments\u003c\/li\u003e\n\u003cli\u003eShore A hardness of 75 with a hard hardness rating for low compression set under sustained load\u003c\/li\u003e\n\u003cli\u003eLow gas permeability and rated for vacuum service applications\u003c\/li\u003e\n\u003cli\u003eStandard Dash 139 cross-section for drop-in replacement in OEM and MRO assemblies\u003c\/li\u003e\n\u003cli\u003ePackaged in quantities of 10 for efficient stocking and servicing of multiple units\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard Dash 139 O-ring replacement compatible with petroleum products and systems requiring fluoroelastomer sealing material. Consult the OEM service manual to confirm dash number and material specification before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eO-ring installation should be performed by a qualified technician following system-specific lockout and bleed-down procedures before disassembly. Inspect the mating groove and sealing surfaces for nicks, burrs, or contamination before seating the O-ring. Apply a light coat of compatible lubricant to the O-ring during assembly to prevent twisting or tearing on installation. Do not use lubricants incompatible with fluoroelastomer compounds, as degradation can cause premature seal failure.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Fluoroelastomer (Viton-type)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 139\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 2.188 inches (55.25 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 2.375 inches (60.49 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.094 inches (2.62 mm)\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: 75\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Rating\u003c\/strong\u003e: Hard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Working Temperature\u003c\/strong\u003e: -15 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Temperature\u003c\/strong\u003e: 400 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Brown\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Media\u003c\/strong\u003e: Petroleum Products\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: 0.06 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: ZMSCVB75139\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51714099708210,"sku":"ZMSCVB75139","price":15.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3f0e36f9f99629f739efd82c3e8c67be_d39f9e53-e9e3-47da-ac6c-7f8a586b8d79.jpg?v=1788496212","url":"https:\/\/voomisupply.com\/products\/value-collection-zmscvb75139-viton-o-ring-dash-139","provider":"Voomi Supply","version":"1.0","type":"link"}