{"product_id":"mr-o-ring-383-viton-o-ring-90a-durometer-14-in-id-durable-seal","title":"Mr O-Ring 383 Viton O-Ring 90A Durometer, 14 in ID - Durable Seal","description":"\u003cp\u003eIn this review the Mr O-Ring 383 Viton O-Ring is assessed for technicians and maintenance professionals who need a heat- and chemical-resistant seal. The bottom line: this single-pack Viton o-ring stands out for its high-temperature tolerance and broad chemical compatibility, making it a straightforward choice when a reliable sealing element is required. The reviewer found the 90A durometer construction and close actual dimensions deliver a good balance of hardness and sealing compression for common industrial uses.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Made from Viton (fluorocarbon rubber), it resists fuels, oils and many solvents so it holds up where general-purpose rubbers fail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e Rated from -26C to 232C, the o-ring tolerates very high temperatures and sub-freezing conditions for wider application use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurometer:\u003c\/strong\u003e The 90A hardness provides a firm cross-section that helps maintain sealing pressure under moderate extrusion and compression.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensional accuracy:\u003c\/strong\u003e Nominal and actual dimensions are provided so installers can verify fit: 14 in ID nominal with measured 13.975 in actual ID for predictable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical compatibility:\u003c\/strong\u003e Performs well with petroleum, diesel blends, biodiesel, methanol or ethanol blends, and many industrial oils and greases for versatile service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards:\u003c\/strong\u003e Sized to AS568 conventions, which simplifies replacement and compatibility with standard o-ring grooves and housings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eMaintenance technicians, HVAC and hydraulic system installers, and equipment rebuilders who regularly work with fuels, oils or high-temperature systems will appreciate this Viton o-ring. Its 90A hardness and broad chemical resistance suit static and low-dynamic sealing points where fuel or oil exposure is expected.\u003c\/p\u003e\n\u003cp\u003eThose needing very soft seals for low compression applications or specialized elastomers (for extreme low-temperature flexibility beyond -26C) should consider alternate compounds. Also consider multi-packs if frequent replacements are anticipated, since this listing is a pack of 1.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExcellent chemical resistance to fuels, oils and many solvents, reducing seal failures in harsh fluids.\u003c\/li\u003e\n\u003cli\u003eHigh maximum temperature rating to 232C makes it suitable for hot-air and high-heat applications.\u003c\/li\u003e\n\u003cli\u003e90A durometer gives a robust, durable seal for many industrial interfaces without excessive deformation.\u003c\/li\u003e\n\u003cli\u003eProvided actual and metric dimensions help confirm correct fit before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAt 90A hardness the o-ring is relatively firm, which may be less suitable where very soft compression is required.\u003c\/li\u003e\n\u003cli\u003eSold as a single-pack which may be inconvenient for users who prefer multi-packs for routine maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eViton (FKM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDurometer\u003c\/td\u003e\n\u003ctd\u003e90A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal dimensions\u003c\/td\u003e\n\u003ctd\u003e14 in ID, 14-3\/8 in OD, 3\/16 in CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual dimensions\u003c\/td\u003e\n\u003ctd\u003e13.975 in ID, 14.395 in OD, 0.210 in CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetric dimensions\u003c\/td\u003e\n\u003ctd\u003e354.97 mm ID, 365.63 mm OD, 5.33 mm CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature range\u003c\/td\u003e\n\u003ctd\u003e-26C (-15F) to 232C (450F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack size\u003c\/td\u003e\n\u003ctd\u003ePack of 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Mr O-Ring 383 Viton o-ring is a practical, dependable option for professionals who need a heat- and chemical-resistant seal in fuel, oil or high-temperature applications. Its 90A hardness and clear dimensional data make fitting predictable, and while a single-pack may not suit high-volume users, it represents good value for targeted repairs and replacements where performance under heat and aggressive fluids matters.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this o-ring suitable for fuel systems?\u003c\/strong\u003e\u003cbr\u003eYes. Viton FKM is compatible with many petroleum fuels and diesel blends, making it suitable for many fuel system sealing points.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it withstand high temperatures?\u003c\/strong\u003e\u003cbr\u003eYes. The specified operating range goes up to 232C (450F), so it tolerates very high temperature exposure in many applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the size match AS568 standards?\u003c\/strong\u003e\u003cbr\u003eYes. The product is offered to AS568 sizing conventions with both nominal and actual dimensions listed for verification.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48236757418203,"sku":"B07R757982","price":40.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51Kuv29LevL._SL1000_ce2129cc-026f-4c9f-adb2-0b1944365ffa.jpg?v=1770717979","url":"https:\/\/gearmusthave.com\/products\/mr-o-ring-383-viton-o-ring-90a-durometer-14-in-id-durable-seal","provider":"GearMustHave","version":"1.0","type":"link"}