{"product_id":"464-viton-o-ring-90a-durometer-17-1-2in-id-durable-chemical-seal","title":"464 Viton O-Ring 90A Durometer, 17-1\/2in ID - Durable Chemical Seal","description":"\u003cp\u003eIn this review the 464 Viton O-Ring is assessed for mechanics, hobbyists, and industrial users who need a small number of high-temperature, chemical-resistant seals. The bottom line is that this single-pack O-ring delivers reliable sealing where heat, fuel, and many solvents are present; its \u003cstrong\u003eViton\u003c\/strong\u003e construction and \u003cstrong\u003e90A durometer\u003c\/strong\u003e make it a durable choice for static and semi-dynamic applications. It is best for repairs or replacements where the exact Aerospace Standard size and resistance profile matter more than bulk quantity.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eViton material:\u003c\/strong\u003e Provides resistance to fuels, aromatic and aliphatic hydrocarbons, and many chemicals, so the ring lasts in harsh environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e90A hardness:\u003c\/strong\u003e The firmer durometer increases resistance to penetration and extrusion in higher-pressure seals compared with softer compounds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRound cross-section:\u003c\/strong\u003e Designed to form a reliable seal between cylindrical overlapping surfaces such as housings and caps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide temperature range:\u003c\/strong\u003e Rated from -15 degrees F to 400 degrees F, suitable for many high-heat applications including heaters and some engine components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAS568A sizing:\u003c\/strong\u003e Conforms to the Aerospace Size Standard for O-rings, simplifying replacements when that standard is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis O-ring suits technicians, home mechanics, and equipment owners needing a single, exact-size replacement in applications like small pumps, spa heaters, or classic car repairs where chemical and heat resistance is important. It also appeals to workshop users who value the known performance of a fluorocarbon elastomer rather than generic rubber.\u003c\/p\u003e\n\u003cp\u003eThose who need large quantities, softer seals for very low-pressure or dynamic rotary shafts, or resistance to strong alkalis and amines should look elsewhere; Viton performs poorly with some low molecular weight organic acids and alkali environments.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh chemical and heat resistance from the \u003cstrong\u003eViton\u003c\/strong\u003e compound, making it durable in fuel and solvent exposure.\u003c\/li\u003e\n\u003cli\u003eFirm \u003cstrong\u003e90A durometer\u003c\/strong\u003e reduces deformation and helps maintain a tight seal under compression.\u003c\/li\u003e\n\u003cli\u003eAS568A size standard ensures predictable fit for applications using aerospace or standardized O-ring sizes.\u003c\/li\u003e\n\u003cli\u003eCustomers report good \u003cstrong\u003efit\u003c\/strong\u003e and value for money in varied repairs and projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-pack quantity limits users who need multiple seals; bulk buyers will find this inconvenient.\u003c\/li\u003e\n\u003cli\u003eNot compatible with certain chemicals such as some low molecular organic acids and strong alkalis.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eViton (fluorocarbon elastomer)\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\u003eCross-section\u003c\/td\u003e\n\u003ctd\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner diameter\u003c\/td\u003e\n\u003ctd\u003e17-1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter diameter\u003c\/td\u003e\n\u003ctd\u003e18 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e1\/4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature range\u003c\/td\u003e\n\u003ctd\u003e-15 degrees F to 400 degrees F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 464 Viton O-Ring is a sensible single-item purchase for repairs requiring a standardized size and strong resistance to heat, fuels, and many solvents. It represents good value for users who need durability and predictable performance, though those needing many rings or compatibility with strong alkalis should consider alternative materials or bulk options.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this O-ring suitable for fuel systems?\u003c\/strong\u003e\u003cbr\u003eThe Viton material is compatible with many fuels and aromatic hydrocarbons, making it suitable for many fuel system seals, though confirm compatibility with your specific fluid.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it handle spa heater temperatures?\u003c\/strong\u003e\u003cbr\u003eYes; the ring is rated to 400 degrees F and has been used successfully in spa heater repairs within that limit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the size standardized for replacements?\u003c\/strong\u003e\u003cbr\u003eYes; the ring meets the AS568A aerospace size standard, which helps ensure a predictable fit for applications using that sizing.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48261890867419,"sku":"B0051Y2R2O","price":42.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/518tiRee_UL._SL1500_d0ce4748-17a5-4f98-b522-cb5e9689f3dd.jpg?v=1778283510","url":"https:\/\/gearmusthave.com\/products\/464-viton-o-ring-90a-durometer-17-1-2in-id-durable-chemical-seal","provider":"GearMustHave","version":"1.0","type":"link"}