{"product_id":"m1-5x28-viton-o-ring-75a-durometer-pack-of-100-mr","title":"M1.5x28 Viton O-Ring 75A Durometer - Pack of 100 Mr","description":"\u003cp\u003eIn this review the M1.5x28 Viton O-Ring is evaluated for technicians, hobbyists, and maintenance crews who need small, chemically resistant seals in quantity; the single biggest reason to buy is the material resilience - made from black \u003cstrong\u003eViton\u003c\/strong\u003e (fluorocarbon elastomer) it tolerates fuels and many chemicals while holding shape across a wide temperature range, which makes these O-rings a dependable choice for threaded barrel protection, small hydraulic fittings, and carburetor seat seals.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Viton construction provides strong resistance to heat, fuels, and many chemicals for reliable sealing in demanding environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e 75A durometer gives a balance of flexibility and firmness so the ring compresses to seal yet resists extrusion on cylindrical surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 28 mm internal diameter with 31 mm outer diameter and 1.5 mm cross-section fits small metric housings and threaded barrels precisely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e Rated for wide service temperatures, allowing use from sub-freezing conditions up to high-heat applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical Compatibility:\u003c\/strong\u003e Suitable for non-flammable hydraulic fuels, silicone oil, and many hydrocarbons, enabling use in automotive and industrial fluid systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Pack:\u003c\/strong\u003e Supplied as a pack of 100 for repeat maintenance or multiple installations, reducing the need for frequent reordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis pack is best for maintenance technicians, motorsport or motorcycle owners, and hobbyists who replace small seals often or need spare O-rings for multiple threaded components; the quantity and material make it economical for recurring use in small assemblies. It is also a sensible choice for anyone sealing small hydraulic or fuel-related connections where compatibility with hydrocarbons and silicone oils is important.\u003c\/p\u003e\n\u003cp\u003eThose needing resistance to strong alkalis, ammonia gas, glycol-based brake fluids, or super-heated steam should look for a different elastomer, since Viton has known vulnerabilities with certain low molecular weight acids and amines. For larger seals or metric sizes outside the 28 mm ID range, a different size will be required.\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\u003eMaterial choice yields excellent heat and fuel resistance for reliable long-term sealing.\u003c\/li\u003e\n\u003cli\u003e75A durometer balances sealing ability with durability against extrusion on cylindrical overlaps.\u003c\/li\u003e\n\u003cli\u003ePack of 100 delivers good value and convenience for repeat maintenance or projects.\u003c\/li\u003e\n\u003cli\u003eWorks well for protecting threads and small carburetor or fuel system seats, as customers report.\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 chemicals such as ammonia gas, strong alkalis, and certain brake fluids, so chemical compatibility must be checked for specific uses.\u003c\/li\u003e\n\u003cli\u003eSize is specific to 28 mm ID applications and will not suit larger metric ports or flanges.\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\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, 1.5 mm width\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e28 mm ID, 31 mm OD\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 450 degrees F (232 degrees C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Quantity\u003c\/td\u003e\n\u003ctd\u003ePack of 100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe M1.5x28 Viton O-Ring pack is a practical, value-oriented option for anyone who needs multiple small, heat- and fuel-resistant seals; its \u003cstrong\u003eViton composition\u003c\/strong\u003e and 75A hardness deliver dependable sealing for threaded barrels, small hydraulic fittings, and carburetor seats, provided the user avoids media known to attack Viton. For routine maintenance and applications within its chemical compatibility, it represents solid value.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these O-rings suitable for fuel systems?\u003c\/strong\u003e\u003cbr\u003eYes - they are Viton and compatible with many fuels and hydrocarbons, making them appropriate for non-flammable hydraulic fuels and common fuel system uses.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill they fit threaded Springfield barrels and similar parts?\u003c\/strong\u003e\u003cbr\u003eCustomers report good fit and function on Springfield echelon and 10mm auto Springfield threaded barrels; measure the 28 mm ID to confirm fit for your part.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan they be used at very high temperatures?\u003c\/strong\u003e\u003cbr\u003eThey are rated for a wide temperature range up to 450 degrees F (232 degrees C) depending on application conditions, but check specific exposure and pressure for your use.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48645206278363,"sku":"B00NQZYM2S","price":59.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/611g_BwDJoL._SL1500_478100aa-ec59-4702-aa22-a9bb1dfb1d56.jpg?v=1778734509","url":"https:\/\/gearmusthave.com\/products\/m1-5x28-viton-o-ring-75a-durometer-pack-of-100-mr","provider":"GearMustHave","version":"1.0","type":"link"}