{"product_id":"027-viton-o-ring-90a-1-5-16-in-id-pack-of-100-mr","title":"027 Viton O-Ring 90A, 1-5\/16 in ID - Pack of 100 Mr","description":"\u003cp\u003eIn this review the reviewer looks at the 027 Viton O-Ring, a hightemperature, chemicalresistant sealing part offered in a pack of 100. The bottom line: this kit is aimed at technicians and hobbyists who need a reliable, repeatable o-ring in a common AS568 size, and the single biggest reason to buy is its material performance - the 90A Viton compound withstands a wide range of fuels, oils and high temperatures that many general purpose elastomers cannot. The review examines fit, material properties and practical uses for this specific 1-5\/16 in ID item.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 90A Viton (FKM) offers excellent resistance to high temperature, ozone and many organic solvents, ensuring long service life in demanding environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e Rated from -26C (-15F) to 232C (450F), which lets these o-rings handle very hot engine or process applications without rapid degradation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize accuracy:\u003c\/strong\u003e Nominal and actual dimensions are provided so installers can match seals precisely to housings and grooves for predictable compression and sealing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical compatibility:\u003c\/strong\u003e Performs well with petroleum products, fuels, biodiesel blends, silicone oils and many acids, making it versatile for automotive and industrial seals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack quantity:\u003c\/strong\u003e Supplied as a pack of 100, convenient for maintenance shops or bulk replacement needs and reduces reordering frequency.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis product is best for maintenance technicians, mechanics and industrial users who require a dependable, heatresistant o-ring in the AS568 027 size for valves, fittings or static sealing faces. The pack size and consistent 90A hardness suit routine servicing tasks where many replacements are needed.\u003c\/p\u003e\u003cp\u003eThose who should look elsewhere include users needing a softer or much harder durometer than 90A, or those who require nonFKM materials for extreme lowtemperature flexibility below the stated range. Also, if a single spare is needed rather than a bulk pack, a smaller quantity option may be preferable.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eViton compound gives strong resistance to high temperature and a wide range of chemicals.\u003c\/li\u003e\n\u003cli\u003ePack of 100 provides good value for repeat maintenance and reduces downtime for shops.\u003c\/li\u003e\n\u003cli\u003eActual and metric dimensions are listed, helping ensure correct fit in AS568 grooves.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003e90A durometer is firm and may not seal as well in applications that require a softer crosssection for low pressure or irregular mating surfaces.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eMr O-Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eViton (FKM), 90A Durometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal dimensions\u003c\/td\u003e\n\u003ctd\u003e1-5\/16 in ID, 1-7\/16 in OD, 1\/16 in CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual dimensions\u003c\/td\u003e\n\u003ctd\u003e1.301 in ID, 1.441 in OD, 0.070 in CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetric dimensions\u003c\/td\u003e\n\u003ctd\u003e33.05 mm ID, 36.61 mm OD, 1.78 mm CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature range\u003c\/td\u003e\n\u003ctd\u003e-26C (-15F) to 232C (450F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack quantity\u003c\/td\u003e\n\u003ctd\u003e100 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Mr O-Ring 027 Viton 90A pack is a practical, costeffective choice for professionals who need bulk, hightemperature resistant seals in a standard AS568 size. Its chemical compatibility and clearly listed actual dimensions make it good value for recurring maintenance and industrial sealing tasks, though users needing a softer seal compound should consider alternatives.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCan these o-rings handle fuel and biodiesel?\u003c\/strong\u003e\u003cbr\u003eYes, the Viton formulation is stated to perform well with petroleum, diesel and biodiesel blends, as well as fuels blended with methanol or ethanol.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the dimensions precise for AS568 sizing?\u003c\/strong\u003e\u003cbr\u003eYes, both nominal and actual dimensions are listed and the product is intended to meet AS568 size standards for consistent fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this suitable for very low temperature applications?\u003c\/strong\u003e\u003cbr\u003eThe lower limit is -26C (-15F); applications requiring greater low temperature flexibility should consider a different elastomer.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48613743493339,"sku":"B07R74FR6D","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51Kuv29LevL._SL1000_b8bd3ae1-0b49-4bbe-b43a-52b78562a0f4.jpg?v=1778581503","url":"https:\/\/gearmusthave.com\/products\/027-viton-o-ring-90a-1-5-16-in-id-pack-of-100-mr","provider":"GearMustHave","version":"1.0","type":"link"}