{"product_id":"m3x24-2-viton-o-ring-75a-durometer-24-2-mm-id-pack-of-50-durable","title":"M3x24.2 Viton O-Ring 75A Durometer, 24.2 mm ID Pack of 50 - Durable","description":"\u003cp\u003eIn this review the M3x24.2 Viton O-Ring (pack of 50) is judged on durability and chemical resistance for industrial sealing tasks. It is best for professionals and hobbyists who need a consistent, heat- and fuel-resistant seal in threaded or cylindrical applications; the single biggest reason to buy is its material: molded Viton with a 75A durometer that keeps a reliable seal across a wide temperature span and resists common fuels and many chemicals. The review focuses on real-use fit, longevity, and compatibility notes gathered from user feedback and product details.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e The Viton fluorocarbon elastomer offers strong resistance to fuels, oils, and many chemicals so seals last longer in harsh environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e Rated for service from roughly -15 degrees F to 400 degrees F, making it suitable for both cold starts and high-heat applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurometer 75A:\u003c\/strong\u003e The 75A hardness balances flexibility and compression set resistance so the O-ring holds a dependable seal without being too stiff.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetric sizing:\u003c\/strong\u003e The 24.2 mm ID and 30.2 mm OD (3 mm cross-section) make it a precise fit for applications designed around metric O-ring grooves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack quantity:\u003c\/strong\u003e Sold as a pack of 50, giving spares for maintenance, repeated replacements, or multiple assemblies and offering good value for industrial use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis O-ring is geared toward mechanics, hydraulic technicians, and hobbyists who need a repeatable, heat- and fuel-resistant seal in threaded barrels, carburetor seats, hydraulic fittings, or vacuum hardware. It suits people replacing worn seals where chemical compatibility and temperature tolerance are priorities.\u003c\/p\u003e\u003cp\u003eThose who should look elsewhere include users who need compatibility with strong alkalis, ammonia, or glycol-based brake fluids and users needing extremely soft or very low-temperature elastomers; for those environments alternate compounds are more appropriate.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGood chemical and fuel resistance from Viton provides long service life in many fluid systems.\u003c\/li\u003e\n\u003cli\u003eCustomers report reliable fit and seal quality on common threaded barrels and carburetor seats, confirming practical compatibility.\u003c\/li\u003e\n\u003cli\u003ePack of 50 offers economical spares for maintenance and reduces downtime during repairs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNot compatible with certain chemicals such as strong alkalis, ammonia gas, and some glycol-based fluids, so it is not universal.\u003c\/li\u003e\n\u003cli\u003eThe 75A hardness may feel firm for applications that require a very soft sealing lip or very low temperature flexibility.\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 (fluorocarbon elastomer)\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\u003eCross-section\u003c\/td\u003e\n\u003ctd\u003eRound, 3 mm width\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner diameter (ID)\u003c\/td\u003e\n\u003ctd\u003e24.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter diameter (OD)\u003c\/td\u003e\n\u003ctd\u003e30.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature range\u003c\/td\u003e\n\u003ctd\u003e-15 degrees F (-26 degrees C) to 400 degrees F (205 degrees C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003ePack of 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe M3x24.2 Viton O-Ring is a practical, cost-effective choice for any workshop needing a reliable, heat- and fuel-resistant seal in metric fittings. With a balanced 75A hardness and proven compatibility with many hydrocarbons and oils, it delivers value through longevity and the convenience of fifty spares, but technicians should confirm chemical compatibility before use in aggressive media.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAre these O-rings compatible with gasoline and common hydraulic fluids?\u003c\/strong\u003e\u003cbr\u003eYes, Viton is resistant to many fuels and non-flammable hydraulic fluids, making these O-rings suitable for such uses.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 75A hardness work for threaded barrel thread protection?\u003c\/strong\u003e\u003cbr\u003eCustomers report it fits well for thread protection and keeps thread protectors in place while providing a good seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan these be used with high vacuum equipment?\u003c\/strong\u003e\u003cbr\u003eViton performs well in high vacuum environments, but verify specific system requirements and chemical exposure before installation.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48265005138139,"sku":"B00NQY1N2Q","price":75.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/611g_BwDJoL._SL1500_cd674c0b-1c85-46b8-9c49-fd65b9ec0952.jpg?v=1778321347","url":"https:\/\/gearmusthave.com\/products\/m3x24-2-viton-o-ring-75a-durometer-24-2-mm-id-pack-of-50-durable","provider":"GearMustHave","version":"1.0","type":"link"}