{"product_id":"462-viton-o-ring-75a-durometer-16-1-2in-id-17in-od-durable-seal","title":"462 Viton O-Ring 75A Durometer 16-1\/2in ID 17in OD - Durable Seal","description":"\u003cp\u003eIn this review the 462 Viton O-ring is evaluated as a single-piece replacement seal for applications that demand chemical and heat resistance. It is best for technicians, hobbyists, and equipment maintainers who need a reliable, heat-tolerant o-ring for fuel, hydraulic or vacuum use; the single biggest reason to buy is the material: made from Viton fluorocarbon elastomer, this o-ring tolerates high temperatures and a wide range of fuels and hydrocarbons while delivering a consistent round seal between overlapping cylindrical surfaces.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eViton material:\u003c\/strong\u003e Provides strong resistance to fuels, aromatic and aliphatic hydrocarbons, ozone and weathering for longer service life in harsh environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide temperature range:\u003c\/strong\u003e Rated for use from -15 degrees F to 400 degrees F, allowing use in both cold starts and high-heat systems without rapid degradation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75A durometer:\u003c\/strong\u003e A medium-hard shore hardness that resists penetration and maintains a reliable seal under compression.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRound cross-section:\u003c\/strong\u003e Designed to seal between cylindrical overlapping surfaces, giving predictable leak resistance when sized correctly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAS568A compatibility:\u003c\/strong\u003e Meets the dimensional standards defined by Aerospace Standard AS568A, simplifying selection for common replacement needs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis o-ring suits mechanics working on non-flammable hydraulic systems, maintenance staff replacing seals in fuel-handling equipment, and owners of specialized gear like MSA fuel bottles or silencers that require a tight, heat-resistant seal. Customers who prioritize chemical compatibility and temperature tolerance will find the material advantages compelling.\u003c\/p\u003e\n\u003cp\u003eIt is not ideal for applications exposed to low molecular organic acids, ammonia gas, strong alkalis or glycol-based brake fluids, where Viton is vulnerable; users with those exposures should select a more chemically compatible elastomer. Also, those needing very soft, low-durometer seals for delicate compression should consider a softer compound.\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\u003eExcellent heat and fuel resistance that holds up in high-temperature service.\u003c\/li\u003e\n\u003cli\u003ePrecise sizing and round cross-section give reliable leak resistance in cylindrical seals.\u003c\/li\u003e\n\u003cli\u003eDurable 75A hardness balances resilience with resistance to penetration over time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot compatible with certain chemicals such as ammonia gas, strong alkalis, amines or glycol-based brake fluids.\u003c\/li\u003e\n\u003cli\u003eSingle pack quantity may require purchasing multiple units for larger projects.\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\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter (ID)\u003c\/td\u003e\n\u003ctd\u003e16-1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter (OD)\u003c\/td\u003e\n\u003ctd\u003e17 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCross-section width\u003c\/td\u003e\n\u003ctd\u003e1\/4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDurometer (Shore)\u003c\/td\u003e\n\u003ctd\u003e75A\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 462 Viton O-ring is a solid choice for anyone needing a heat and fuel resistant replacement seal in hydraulic, fuel, vacuum or weather-exposed systems; its 75A hardness and AS568A dimensional compatibility make it good value for maintenance and repair tasks where chemical resistance and temperature tolerance matter most.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this o-ring suitable for gasoline and most fuels?\u003c\/strong\u003e\u003cbr\u003eYes, Viton is compatible with many fuels, aromatic and aliphatic hydrocarbons, and is commonly used where fuel resistance is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat temperatures can this o-ring withstand?\u003c\/strong\u003e\u003cbr\u003eThis o-ring is usable from -15 degrees F up to 400 degrees F, making it suitable for a wide range of thermal conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it work with brake fluid or ammonia?\u003c\/strong\u003e\u003cbr\u003eNo, Viton is vulnerable to glycol-based brake fluids, ammonia gas and some alkalis, so choose a different compound for those exposures.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48674885239003,"sku":"B000FMWQIC","price":35.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81iyYJCP7YL._SL1500_1d2c30ef-9d5e-4421-9ccb-bce8477263fb.jpg?v=1778668586","url":"https:\/\/gearmusthave.com\/products\/462-viton-o-ring-75a-durometer-16-1-2in-id-17in-od-durable-seal","provider":"GearMustHave","version":"1.0","type":"link"}