{"product_id":"473-viton-o-ring-75a-durometer-24-in-id-heat-and-fuel-resistant","title":"473 Viton O-Ring 75A Durometer 24 in ID - Heat and Fuel Resistant","description":"\u003cp\u003eIn this review the 473 Viton O-ring is recommended for technicians, hobbyists, and equipment maintainers who need a single durable replacement seal that resists heat, fuels, and many chemicals. The bottom line: it is a straightforward, well-made Viton O-ring that performs where chemical compatibility and temperature range matter most. The review reflects hands-on fit and function reports showing reliable leak resistance and durable performance in fuel bottle and barrel seal applications, making it a practical grab-and-go spare part.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Made of Viton fluorocarbon elastomer, it provides superior resistance to fuels, aromatic and aliphatic hydrocarbons, and many industrial chemicals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e Rated for use between -15 degrees F and 400 degrees F, it maintains sealing integrity across hot engine bays and cold storage conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurometer:\u003c\/strong\u003e The 75A hardness balances flexibility and resistance to penetration, helping the ring hold shape under pressure while providing a reliable seal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-section:\u003c\/strong\u003e Round profile designed to seal between cylindrical overlapping surfaces, giving dependable contact and leak control in common plumbing and hydraulic joints.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards:\u003c\/strong\u003e Manufactured to AS568A sizing standards, so it is a drop-in match for devices and assemblies specified to that common O-ring range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical compatibility:\u003c\/strong\u003e Suitable for non-flammable hydraulic fuels, silicone oils, benzene, propane, and vacuum environments, expanding usable service cases.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis O-ring suits mechanics, maintenance techs, and DIYers who repair fuel bottles, seals on firearms, hydraulic fittings, or any application needing a resilient, fuel-resistant seal. It is especially useful as a replacement for equipment that lists Viton or fluorocarbon elastomers in service specifications.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for systems exposed to low molecular weight organic acids, ammonia gas, strong alkalis, or glycol-based brake fluids, where alternative elastomers or seal materials should be considered to avoid degradation.\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\u003eGood chemical and fuel resistance, making it reliable in contact with common fuels and hydrocarbons.\u003c\/li\u003e\n\u003cli\u003eWide usable temperature range lets it function in both heated engine compartments and cold environments.\u003c\/li\u003e\n\u003cli\u003eCustomers report precise fit and strong leak resistance in common replacements, indicating consistent manufacturing quality.\u003c\/li\u003e\n\u003cli\u003e75A durometer gives a useful balance of durability and sealability for many cylindrical joints.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eViton is vulnerable to ammonia, some amines, alkalis, and glycol-based fluids, so it is not universal for every chemical service.\u003c\/li\u003e\n\u003cli\u003eSingle pack size requires buying multiples for larger maintenance tasks or inventory stocking.\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\u003c\/td\u003e\n\u003ctd\u003e24 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter diameter\u003c\/td\u003e\n\u003ctd\u003e24-1\/2 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\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 473 Viton O-ring is a solid, no-frills replacement that delivers reliable sealing where heat and fuel resistance are required. For anyone needing a single, standards-sized Viton seal that fits common fuel bottles and barrel seals, it represents good value and proven durability, though users handling alkalis or glycol-based fluids should choose a different elastomer.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this O-ring compatible with gasoline and diesel?\u003c\/strong\u003e\u003cbr\u003eYes, Viton is compatible with many fuels and aromatic and aliphatic hydrocarbons, making it suitable for gasoline and diesel exposure in most service conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it work in high temperature engine applications?\u003c\/strong\u003e\u003cbr\u003eYes, the rated range to 400 degrees F allows use in many high temperature locations, though actual service life depends on operating conditions and mechanical stress.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it meet common sizing standards?\u003c\/strong\u003e\u003cbr\u003eYes, it is made to the AS568A standard sizing so it can be used as a drop-in replacement where that standard is specified.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48601593118939,"sku":"B000FMYTHI","price":60.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81iyYJCP7YL._SL1500_ba62a6a6-7cf0-46c4-b9d0-5798c5ad82f0.jpg?v=1778376768","url":"https:\/\/gearmusthave.com\/products\/473-viton-o-ring-75a-durometer-24-in-id-heat-and-fuel-resistant","provider":"GearMustHave","version":"1.0","type":"link"}