{"product_id":"227-viton-o-ring-75a-2-1-8-in-id-x-2-3-8-in-od-durable-seal-pack","title":"227 Viton O-Ring 75A, 2-1\/8 in ID x 2-3\/8 in OD - Durable Seal Pack","description":"\u003cp\u003eIn this review the 227 Viton O-ring is evaluated for its suitability as a replacement or maintenance seal in fuel, hydraulic, and heat-exposed applications. The bottom line: this pack of 100 o-rings is aimed at technicians, shop owners, and DIYers who need a reliable, chemically resistant seal in medium-hardness Viton. The single biggest reason to buy is the material and temperature capability - the fluorocarbon elastomer offers strong resistance to many fuels and chemicals and holds up across a wide temperature range, making these o-rings a practical choice for replacements and routine service.\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, the rings resist many fuels, oils, and aromatic and aliphatic hydrocarbons for longer service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e Rated from -15 degrees F to 400 degrees F, they maintain sealing performance from subzero to high-heat environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurometer:\u003c\/strong\u003e The 75A hardness balances compression set resistance and flexibility to perform as a durable seal in dynamic and static joints.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape and size:\u003c\/strong\u003e Round cross-section with 2-1\/8 in ID and 2-3\/8 in OD provides a consistent seal between overlapping cylindrical surfaces common in plumbing and fuel fittings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards:\u003c\/strong\u003e Manufactured to the AS568A sizing standard, simplifying selection when replacing standard o-rings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack quantity:\u003c\/strong\u003e Supplied in a 100-pack, which reduces downtime and simplifies inventory for recurring maintenance tasks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe 227 Viton O-ring is best for maintenance professionals, hobbyists working on fuel systems, and industrial technicians who need a chemical- and heat-resistant seal in medium-hardness material. It is especially useful where compatibility with silicone oils, chlorinated solvents, propane, and many aromatic hydrocarbons is required.\u003c\/p\u003e\n\u003cp\u003eThose who need seals for service with low molecular weight organic acids, ammonia gas, strong alkalis, or glycol-based brake fluids should look at alternate elastomers, since Viton is vulnerable to those specific chemistries. Also, for applications requiring extreme softness or very low-temperature flexibility below the rated range, a different compound may be preferable.\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 heat resistance for many fuels and solvents, supporting reliability in demanding systems.\u003c\/li\u003e\n\u003cli\u003e75A durometer offers a useful balance of durability and sealing ability for both static and some dynamic joints.\u003c\/li\u003e\n\u003cli\u003ePack of 100 gives good value and reduces the need for frequent reorders for shops and service crews.\u003c\/li\u003e\n\u003cli\u003eMeets AS568A sizing which simplifies replacement and compatibility with standard fittings.\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 substances such as ammonia gas, amines, and glycol-based brake fluids, limiting use in certain chemical environments.\u003c\/li\u003e\n\u003cli\u003eThe 75A hardness may be firmer than ideal for precision low-pressure or very sensitive fittings requiring softer seals.\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\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e2-1\/8 in ID x 2-3\/8 in OD\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\u003eDurometer\u003c\/td\u003e\n\u003ctd\u003e75A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature range\u003c\/td\u003e\n\u003ctd\u003e-15 degrees F to 400 degrees F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\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 227 Viton O-ring is a practical, cost-effective choice for anyone needing a robust seal that tolerates heat and common fuels. Its 75A hardness and AS568A sizing make it a reliable replacement for many plumbing and fuel applications, and the 100-count pack offers clear value for shops and regular maintenance. Choose a different compound only when your service fluid is one of the known incompatibilities.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these o-rings compatible with gasoline and diesel?\u003c\/strong\u003e\u003cbr\u003eYes, Viton is compatible with many fuels and aromatic and aliphatic hydrocarbons listed in the product description.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill these seals work at high temperatures?\u003c\/strong\u003e\u003cbr\u003eYes, they are rated to 400 degrees F and hold up in many high-heat sealing applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use them with brake fluid?\u003c\/strong\u003e\u003cbr\u003eNo, Viton is vulnerable to glycol-based brake fluids, so choose a brake-fluid-compatible elastomer for those systems.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48195554640091,"sku":"B000MN9R6S","price":117.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81iyYJCP7YL._SL1500_eb1c668e-b191-45cb-809c-0bcfba7ee96c.jpg?v=1770230316","url":"https:\/\/gearmusthave.com\/products\/227-viton-o-ring-75a-2-1-8-in-id-x-2-3-8-in-od-durable-seal-pack","provider":"GearMustHave","version":"1.0","type":"link"}