{"product_id":"mr-o-ring-458-viton-o-ring-90a-durometer-14-1-2-in-id-durable-seal","title":"Mr O-Ring 458 Viton O-Ring 90A Durometer 14-1\/2 in ID - Durable Seal","description":"\u003cp\u003eIn this review the Mr O-Ring 458 Viton O-Ring is evaluated for durability and sealing performance in demanding environments. The bottom line: this single-pack Viton o-ring is aimed at technicians, maintenance crews, and hobbyists who need a high-temperature, fuel-resistant seal in a specific AS568 size; its biggest reason to buy is the combination of a 90A durometer compound and broad chemical resistance that copes with fuels, oils and high-temperature air. The review shows where it excels and where users should be cautious when selecting hard durometer seals.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e The Viton (FKM) compound offers strong resistance to fuels, mineral oils and many organic solvents so the ring holds up in petroleum and chemical exposures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurometer:\u003c\/strong\u003e The 90A hardness provides a stiff, wear-resistant seal that maintains shape under compression and thermal cycling for reliable service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize accuracy:\u003c\/strong\u003e Nominal and actual dimensions are supplied so installers can verify fit: 14-1\/2 in ID (actual 14.475 in) and 15 in OD (actual 15.025 in) for predictable installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e Rated from -26C (-15F) to 232C (450F) so the o-ring works across a wide span of cold starts and very high operating temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical versatility:\u003c\/strong\u003e Performs well with diesel, biodiesel blends, methanol or ethanol blends and silicone greases, making it useful in fuel systems and lubrication seals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShelf life:\u003c\/strong\u003e Effectively unlimited shelf-life simplifies inventory for shops and minimizes waste when spare rings are kept on the shelf.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis o-ring suits industrial maintenance technicians, marine and automotive professionals, and anyone sealing equipment exposed to fuels, hydraulic fluids or elevated temperatures. Its 90A hardness and Viton chemistry are particularly useful where oil and fuel resistance plus thermal stability are required.\u003c\/p\u003e\n\u003cp\u003eThose looking for a softer, more flexible seal for low-pressure or dynamic shaft sealing should look at lower durometer elastomers; similarly, if exact metric sizing or non-Viton elastomers are required for extreme cold beyond -26C, choose a material matched to that environment.\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 chemical resistance to fuels, oils and many solvents for long-lasting seals in harsh fluids.\u003c\/li\u003e\n\u003cli\u003eWide temperature capability up to 232C (450F) for use near high-heat sources.\u003c\/li\u003e\n\u003cli\u003eAccurate actual dimensions listed so fit checks are straightforward before installation.\u003c\/li\u003e\n\u003cli\u003eDurable 90A durometer gives wear resistance and shape retention under compression.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e90A hardness can be too stiff for low-pressure dynamic applications or where extreme conformability is required.\u003c\/li\u003e\n\u003cli\u003ePack of 1 may not suit users needing multiple spares or frequent replacement without buying larger packs.\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 (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 ID\u003c\/td\u003e\n\u003ctd\u003e14-1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal OD\u003c\/td\u003e\n\u003ctd\u003e15 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCross section\u003c\/td\u003e\n\u003ctd\u003e1\/4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual dimensions\u003c\/td\u003e\n\u003ctd\u003e14.475 in ID, 15.025 in OD, 0.275 in 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\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Mr O-Ring 458 Viton o-ring is a practical choice for professionals who need a heat- and fuel-resistant seal in a common AS568 size; its 90A durometer and accurate actual dimensions make it reliable for static seals and high-temperature applications. It represents good value when a durable, chemically resistant o-ring is required, though buyers needing softer, highly flexible seals should consider alternative durometers.\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, the Viton compound performs well in petroleum products including diesel and typical fuel blends.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the 90A hardness work for dynamic shaft seals?\u003c\/strong\u003e\u003cbr\u003eThe 90A durometer is fairly stiff and best for static or low-movement seals; for dynamic shaft applications a softer durometer may be preferable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo the listed dimensions match actual sizes for installation?\u003c\/strong\u003e\u003cbr\u003eYes, actual dimensions are provided (14.475 in ID, 15.025 in OD, 0.275 in CS) to help verify fit before installation.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48749381353691,"sku":"B07R62SPCR","price":58.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51Kuv29LevL._SL1000_fdb3249c-9f3c-46cc-bc25-7936c6988554.jpg?v=1778961886","url":"https:\/\/gearmusthave.com\/products\/mr-o-ring-458-viton-o-ring-90a-durometer-14-1-2-in-id-durable-seal","provider":"GearMustHave","version":"1.0","type":"link"}