{"product_id":"m2x105-viton-o-ring-75a-durometer-105-mm-id-durable-seal","title":"M2x105 Viton O-Ring 75A Durometer, 105 mm ID - Durable Seal","description":"\u003cp\u003eIn this review the M2x105 Viton O-Ring is evaluated for workshop and field sealing tasks where chemical and heat resistance matter. The bottom line: this pack of 25 black Viton rings is best for technicians and hobbyists who need a reliable, medium-hardness seal that resists fuels and many chemicals; its primary selling point is the material performance across a wide temperature range. The reviewer found the size and hardness make it a versatile replacement for threaded barrel protectors, carburetor seat seals and many hydraulic or pneumatic static sealing points.\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 for strong resistance to fuels, oils and many solvents so seals last in aggressive environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e Rated for wide use from low temperatures up to high heat so applications that see thermal cycling remain sealed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurometer:\u003c\/strong\u003e 75A hardness gives a balance of flexibility and compression set resistance suitable for dynamic and static seals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRound cross-section:\u003c\/strong\u003e Classic O-ring shape provides a consistent sealing surface between overlapping cylindrical parts for predictable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack quantity:\u003c\/strong\u003e Supplied as a pack of 25 which reduces downtime and keeps spares on hand for routine maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe M2x105 Viton O-Ring is aimed at mechanics, gunsmiths, small engine repairers and industrial maintenance staff who need a chemical- and heat-resistant O-ring in a common 105 mm ID size. It is also a good fit for hobbyists who maintain motorcycles or carburetors and need reliable thread protection or seat seals.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include users requiring resistance to strong alkalies, ammonia gas, or certain glycol-based brake fluids, since Viton has known vulnerabilities to those chemicals. Also, if a much softer or much harder durometer is required for a specific dynamic seal, select a different hardness.\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 and fuel resistance from the Viton compound provides durable performance in many service fluids.\u003c\/li\u003e\n\u003cli\u003eWide usable temperature range keeps seals effective from cold starts to high-heat conditions.\u003c\/li\u003e\n\u003cli\u003e75A durometer balances flexibility and sealing force so it fits a variety of cylindrical joints without excessive compression.\u003c\/li\u003e\n\u003cli\u003ePack of 25 offers strong value and convenient spares for maintenance jobs.\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 some low molecular organic acids, certain amines and glycol-based brake fluids, so it is not universal for all chemicals.\u003c\/li\u003e\n\u003cli\u003eThe 75A hardness may be too stiff for seals that require a very soft material to conform to irregular surfaces.\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\u003eDurometer (hardness)\u003c\/td\u003e\n\u003ctd\u003e75A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCross-section\u003c\/td\u003e\n\u003ctd\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner diameter (ID)\u003c\/td\u003e\n\u003ctd\u003e105 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter diameter (OD)\u003c\/td\u003e\n\u003ctd\u003e109 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth \/ cross-section height\u003c\/td\u003e\n\u003ctd\u003e2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack quantity\u003c\/td\u003e\n\u003ctd\u003e25 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe M2x105 Viton O-Ring delivers dependable sealing where heat and fuel resistance are required, making it a sensible buy for maintenance professionals and DIYers who need a durable, correctly sized replacement. The pack size and balanced 75A hardness give good value, provided the user avoids chemical environments known to attack Viton.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this O-ring suitable for fuel systems?\u003c\/strong\u003e\u003cbr\u003eYes, Viton is resistant to many fuels and non-flammable hydraulic fluids, making it suitable for many fuel system sealing points.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat temperature range will it handle?\u003c\/strong\u003e\u003cbr\u003eIt is rated for a wide range from about -15 degrees F (-26 degrees C) up to high temperatures suitable for many applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it fit threaded barrel protectors?\u003c\/strong\u003e\u003cbr\u003eCustomers report it fits common 10 mm auto threaded barrels and helps keep thread protectors in place, but check dimensions before relying on a precise fit.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48243910934747,"sku":"B00NR0QBLC","price":100.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/611g_BwDJoL._SL1500_f0120607-6a64-45dc-a484-d516614052cc.jpg?v=1770921789","url":"https:\/\/gearmusthave.com\/products\/m2x105-viton-o-ring-75a-durometer-105-mm-id-durable-seal","provider":"GearMustHave","version":"1.0","type":"link"}