{"product_id":"mr-o-ring-175-viton-o-ring-90a-durometer-9-in-id-pack-of-10","title":"Mr O-Ring 175 Viton O-Ring 90A Durometer, 9 in ID Pack of 10","description":"\u003cp\u003eIn this review the Mr O-Ring 175 Viton O-Ring is assessed for workshop and industrial sealing tasks where chemical and temperature resistance matter most. The bottom line: this pack of 10, 90A durometer Viton o-rings delivers reliable sealing across fuels, oils and high temperature air, making it a practical choice for mechanics, fabricators and maintenance techs who need durable, chemical-resistant seals. The review focuses on material performance, dimensional accuracy and typical use cases to help readers decide if these o-rings fit their repair or OEM needs.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Made from Viton (FKM), the o-ring resists high temperature, ozone and many organic solvents, which reduces unexpected seal failures in aggressive environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e The 90A durometer provides a firm sealing surface that holds shape under compression while still allowing a proper seal in static and some dynamic applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Nominal 9 in ID with actual measured dimensions close to spec, providing predictable fit for AS568 size applications in pumps, valves and flanges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical compatibility:\u003c\/strong\u003e Performs well with petroleum products, diesel and biodiesel blends, mineral oils, silicone greases and many solvents, expanding its usefulness across fuel and lubrication systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e Rated from -26C (-15F) to 232C (450F), making these o-rings suitable for both low-temperature storage and very high temperature air or fluid exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack sizing:\u003c\/strong\u003e Sold as a pack of 10 which helps shops and technicians keep common replacement parts on hand for frequent maintenance tasks.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThese Viton o-rings are aimed at maintenance technicians, mechanics and industrial users who need seals that withstand fuel, oil and elevated temperatures. The combination of 90A hardness and Viton chemistry suits applications in fuel systems, hydraulic fittings, high temperature vents and exposed outdoor equipment.\u003c\/p\u003e\u003cp\u003eThose working exclusively with water, steam at very high pressure, or where extreme flexibility at very low temperatures is required should consider alternate elastomers designed specifically for those conditions; likewise, designers needing exact custom compounds or soft, low-durometer seals may prefer other options.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExcellent resistance to fuels, oils and many solvents, reducing frequency of replacements in chemical exposures.\u003c\/li\u003e\n\u003cli\u003eWide operating temperature range that covers most automotive and light industrial needs.\u003c\/li\u003e\n\u003cli\u003e90A durometer provides durable, shape-retaining sealing for static and some dynamic uses.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHigher durometer means less pliability than softer o-rings, so it may not be ideal for seals requiring significant elasticity.\u003c\/li\u003e\n\u003cli\u003eViton is more expensive than generic elastomers, which could be a consideration for very large volume applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\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\u003e9 in ID, 9-3\/16 in OD, 3\/32 in CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual Dimensions\u003c\/td\u003e\n\u003ctd\u003e8.987 in ID, 9.193 in OD, 0.103 in CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetric Dimensions\u003c\/td\u003e\n\u003ctd\u003e228.27 mm ID, 233.51 mm OD, 2.62 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\u003ctr\u003e\n\u003ctd\u003ePack Size\u003c\/td\u003e\n\u003ctd\u003ePack of 10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Mr O-Ring 175 Viton o-ring is a solid, practical choice for users who need reliable chemical and high temperature resistance in a familiar AS568 size. For workshops and maintenance teams that replace seals frequently in fuel and oil systems, this pack of 10 offers predictable dimensions and durable performance, representing good value where Viton compatibility is required.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAre these o-rings compatible with diesel and biodiesel?\u003c\/strong\u003e\u003cbr\u003eYes. The Viton compound is suitable for diesel and common biodiesel blends, as noted in the product compatibility list.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the usable temperature range for these o-rings?\u003c\/strong\u003e\u003cbr\u003eThe specified operating range is -26C (-15F) to 232C (450F), covering most automotive and light industrial scenarios.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo the actual dimensions match nominal sizes?\u003c\/strong\u003e\u003cbr\u003eThe listed actual dimensions are 8.987 in ID and 9.193 in OD with a 0.103 in cross section, which aligns closely with the nominal 9 in ID and 9-3\/16 in OD sizing.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48615818133723,"sku":"B07R74HV36","price":73.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51Kuv29LevL._SL1000_6503418f-2c49-43ed-93c8-802652f7277e.jpg?v=1778394559","url":"https:\/\/gearmusthave.com\/products\/mr-o-ring-175-viton-o-ring-90a-durometer-9-in-id-pack-of-10","provider":"GearMustHave","version":"1.0","type":"link"}