{"product_id":"468-viton-o-ring-75a-durometer-black-19-1-2in-id-durable-seal","title":"468 Viton O-Ring 75A Durometer Black 19-1\/2in ID - Durable Seal","description":"\u003cp\u003eIn this review the 468 Viton O-ring is evaluated for technicians, hobbyists, and maintenance professionals who need a heat- and chemical-resistant seal. The bottom line: this single pack Viton O-ring stands out because the fluorocarbon compound tolerates high temperatures and many fuels, making it a dependable replacement part in engines, fuel systems, and high-vacuum setups. It is a straightforward, no-frills item that delivers on durability and compatibility when a resilient round-seal with a 75A hardness is required.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Made of Viton fluorocarbon elastomer that provides excellent resistance to heat, fuels, and many chemicals for longer service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e Usable from -15 degrees F (-26 degrees C) to 400 degrees F (205 degrees C), which covers most workshop and field conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurometer:\u003c\/strong\u003e The 75A hardness helps resist penetration and extrusion while still providing a reliable seal between cylindrical surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape and fit:\u003c\/strong\u003e The round cross-section is designed to seal overlapping cylindrical parts such as barrels, pumps, and fittings with consistent contact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical compatibility:\u003c\/strong\u003e Compatible with fuels, silicone oil, aromatic and aliphatic hydrocarbons, and suitable for high vacuum and ozone exposure in many applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards:\u003c\/strong\u003e Manufactured to meet the AS568A dimensional standard for consistent sizing and interchangeability.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis O-ring suits professionals who repair hydraulic components, fuel systems, suppressor assemblies, and precision equipment that require a heat- and fuel-resistant seal. It is especially appropriate for users who need a single, precisely sized replacement in service kits or when testing different materials.\u003c\/p\u003e\u003cp\u003eThose who should look elsewhere include users needing compatibility with strong alkalis, ammonia, glycol brake fluids, amines, or super-heated steam, since Viton can be vulnerable to those media. If multiple sizes or a softer or firmer durometer are required, consider a different pack or material.\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 heat and many fuels, making it reliable in demanding thermal environments.\u003c\/li\u003e\n\u003cli\u003eDurable 75A hardness that resists penetration while maintaining a good seal in cylindrical overlaps.\u003c\/li\u003e\n\u003cli\u003eCustomers report good fit and value for money in a range of real applications, from fuel bottles to suppressor seals.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eVulnerable to certain chemicals such as low molecular organic acids, ammonia, alkalis, and glycol-based brake fluids, limiting use in some specialized systems.\u003c\/li\u003e\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\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter\u003c\/td\u003e\n\u003ctd\u003e19-1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e20 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e1\/4 in\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\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e-15 degrees F to 400 degrees F (-26 degrees C to 205 degrees C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe 468 Viton O-ring is a sensible single-piece replacement for anyone needing a reliable, heat- and fuel-resistant seal in pumps, barrels, or vacuum equipment. It offers solid durability and dimensional consistency to AS568A standards, making it good value for users who work with compatible fluids and want a long-lasting, well-fitting O-ring.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIs this O-ring suitable for fuel applications?\u003c\/strong\u003e\u003cbr\u003eYes; Viton is compatible with many fuels and aromatic and aliphatic hydrocarbons, making it suitable for many fuel-system uses.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill it handle high temperatures?\u003c\/strong\u003e\u003cbr\u003eYes; it is rated for use from -15 degrees F (-26 degrees C) up to 400 degrees F (205 degrees C).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre there chemicals to avoid with this O-ring?\u003c\/strong\u003e\u003cbr\u003eAvoid low molecular organic acids, ammonia gas, alkalis, amines, glycol-based brake fluids, and super-heated steam, where Viton can degrade.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48662329458907,"sku":"B000FMWQL4","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81iyYJCP7YL._SL1500_4069948e-8c1d-40bd-9436-c4cefc52c404.jpg?v=1778678688","url":"https:\/\/gearmusthave.com\/products\/468-viton-o-ring-75a-durometer-black-19-1-2in-id-durable-seal","provider":"GearMustHave","version":"1.0","type":"link"}