{"product_id":"mr-o-ring-450-viton-o-ring-90a-durometer-10-1-2in-id-durable-seal","title":"Mr O-Ring 450 Viton O-Ring 90A Durometer 10-1\/2in ID - Durable Seal","description":"\u003cp\u003eIn this review the Mr O-Ring 450 Viton O-Ring is evaluated for workshop and industrial sealing tasks where chemical and temperature resistance matter most. The bottom line: this single-pack Viton o-ring is aimed at technicians and maintenance pros who need a hard 90A durometer seal that withstands fuels, oils and high heat up to 232C (450F). The review focuses on real-world durability, dimensional accuracy, and material suitability so a buyer can decide if this specific size and hardness fits their application.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Made from high-performance Viton (FKM), it resists fuels, mineral oils and many organic solvents for extended service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e The 90A durometer provides a firm cross-section that maintains seal integrity under pressure and compression set conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e Rated from -26C (-15F) to 232C (450F), it performs across a wide thermal span for hot-engine and high-temp process uses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Nominal 10-1\/2in ID, 11in OD, 1\/4in CS with actual measurements close to spec for reliable replacement of AS568 sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical compatibility:\u003c\/strong\u003e Suitable for petroleum products, diesel blends, methanol\/ethanol blends, silicone oils and many strong acids in intermittent exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShelf-life:\u003c\/strong\u003e Effectively unlimited in storage when kept clean and dry, reducing the need for frequent inventory turnover.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Mr O-Ring 450 Viton O-Ring is best for industrial maintenance crews, HVAC and hydraulic technicians, and anyone servicing engines or fuel systems that demand high temperature and chemical resistance. It is particularly appropriate where a firmer 90A durometer is preferred to limit extrusion and maintain a long-term seal under pressure.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include hobbyists needing very soft or food-grade seals, or users who require elastomers with extreme low-temperature flexibility below -26C, since this compound is optimized for higher temperature and chemical resilience rather than ultra-low-temperature softness.\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 resistance to fuels, oils and many solvents, making it reliable in petrochemical environments.\u003c\/li\u003e\n\u003cli\u003eHigh temperature capability to 232C (450F) means it works in hot engine or process applications.\u003c\/li\u003e\n\u003cli\u003e90A hardness reduces compression set and improves longevity in pressurized joints.\u003c\/li\u003e\n\u003cli\u003eActual dimensions closely match nominal sizes for straightforward AS568-compatible replacement.\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 it is relatively firm, so it may not seal as well in applications needing a softer, more conforming material.\u003c\/li\u003e\n\u003cli\u003eSingle-pack sizing means frequent buyers may prefer larger multipacks for inventory efficiency.\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 dimensions\u003c\/td\u003e\n\u003ctd\u003e10-1\/2in ID, 11in OD, 1\/4in CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual dimensions\u003c\/td\u003e\n\u003ctd\u003e10.475in ID, 11.025in OD, 0.275in CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetric dimensions\u003c\/td\u003e\n\u003ctd\u003e266.07 mm ID, 280.05 mm OD, 6.99 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\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Mr O-Ring 450 Viton O-Ring is a solid choice for professionals needing a durable, chemical- and heat-resistant seal in a common AS568-equivalent size. Its 90A hardness and close-to-nominal actual dimensions make it reliable for fuel, oil and high-temp sealing tasks, and it represents good value when a firm, long-lasting Viton seal is required.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this o-ring compatible with fuel and diesel?\u003c\/strong\u003e\u003cbr\u003eYes, the Viton compound is designed to perform well with petroleum products, diesel and blends including biodiesel in typical sealing applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it handle high temperatures?\u003c\/strong\u003e\u003cbr\u003eYes, it is rated to 232C (450F) for intermittent or continuous high-temperature service within that range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the actual size match the nominal\u003c\/strong\u003e\u003cbr\u003eThe product lists actual dimensions (10.475in ID, 11.025in OD, 0.275in CS) that closely match the nominal 10-1\/2in ID, 11in OD, 1\/4in CS for straightforward replacement.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48615065518299,"sku":"B07R43KH1Y","price":45.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51Kuv29LevL._SL1000_17902e7b-a831-41e9-a625-f6a52f48b3ea.jpg?v=1778585387","url":"https:\/\/gearmusthave.com\/products\/mr-o-ring-450-viton-o-ring-90a-durometer-10-1-2in-id-durable-seal","provider":"GearMustHave","version":"1.0","type":"link"}