{"product_id":"217-o-ring-viton-75a-1-3-16in-id-1-7-16in-od-pack-of-50","title":"217 O-Ring Viton 75A 1-3\/16in ID 1-7\/16in OD (Pack of 50)","description":"\u003cp\u003eIn this review the 217 O-Ring made from Viton is evaluated for technicians, hobbyists, and maintenance teams who need reliable seals exposed to heat, fuels, and chemicals. The bottom line: this pack of 50 O-rings delivers dependable sealing performance where chemical and high-temperature resistance matter most. The reviewer found the 75A durometer provides a firm but compliant seal for cylindrical overlaps, and that compatibility with common fuels and aromatic hydrocarbons makes these O-rings a sensible replacement for fuel bottle seals and firearm barrel applications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Viton fluorocarbon elastomer provides excellent resistance to heat, fuels, and many chemicals for longer service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e The 75A durometer balances flexibility and firmness to maintain a consistent seal without extruding under pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e Usable from -15 degrees F to 450 degrees F, giving broad applicability from cold environments to engine-adjacent heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-section:\u003c\/strong\u003e Round profile forms a reliable seal between overlapping cylindrical surfaces commonly found in fuel systems and small hydraulic fittings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards:\u003c\/strong\u003e Sized to meet the AS568A 217 standard, ensuring interchangeability with other 217-size parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical compatibility:\u003c\/strong\u003e Works with non-flammable hydraulic fuels, silicone oil, trichloroethylene, benzene, propane and similar media for versatile use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis O-ring pack is ideal for mechanics, field techs, armorer shops, and DIYers who replace seals on MSA-style fuel bottles, Remington parts, or small equipment where heat and fuel contact are expected. The pack of 50 also suits shops that perform frequent maintenance and need a consistent, in-stock replacement size.\u003c\/p\u003e\u003cp\u003eThose who need compatibility with strong alkalis, amines, glycol-based brake fluids, or super-heated steam should look elsewhere, as Viton can be vulnerable to those media. If a softer or much firmer compound is required for specialty vacuum or cryogenic seals, a different elastomer 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\u003eGood chemical and fuel resistance makes these O-rings practical for fuel and aromatic hydrocarbon exposure.\u003c\/li\u003e\n\u003cli\u003eHigh temperature capability up to 450 degrees F supports use near engines or hot assemblies.\u003c\/li\u003e\n\u003cli\u003eCustomers report reliable fit and leak resistance in common replacement roles, confirming consistent sizing and quality.\u003c\/li\u003e\n\u003cli\u003ePack of 50 offers value for workshops and repeat maintenance tasks.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNot suitable for contact with low molecular organic acids, ammonia gas, alkalis, or glycol-based brake fluids.\u003c\/li\u003e\n\u003cli\u003e75A hardness may be too firm for sealing applications that require a very soft lip-style compression.\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\u003eInner diameter\u003c\/td\u003e\n\u003ctd\u003e1-3\/16 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter diameter\u003c\/td\u003e\n\u003ctd\u003e1-7\/16 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e1\/8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature range\u003c\/td\u003e\n\u003ctd\u003e-15 degrees F to 450 degrees F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack quantity\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe 217 Viton 75A O-ring pack is a practical, cost-effective choice for anyone needing durable seals exposed to fuels, heat, and common hydrocarbons. It is particularly good for routine replacement work and small equipment maintenance where consistent size and chemical resistance are required, making it solid value for workshops and field techs.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\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 hydrocarbons, making these O-rings suitable for gasoline and diesel exposure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill they hold up near engine temperatures?\u003c\/strong\u003e\u003cbr\u003eYes, the specified range to 450 degrees F means they tolerate engine-adjacent heat in many applications, though continuous contact at the upper limit should be assessed case by case.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo these O-rings fit standard 217 applications?\u003c\/strong\u003e\u003cbr\u003eYes, they are sized to the AS568A 217 dimensions and are reported by customers to fit common 217-size replacements and seals.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48226635546843,"sku":"B00M8YWEA0","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81iyYJCP7YL._SL1500_4e2aeca7-7171-47a1-9f59-d0a0b400343a.jpg?v=1770901560","url":"https:\/\/gearmusthave.com\/products\/217-o-ring-viton-75a-1-3-16in-id-1-7-16in-od-pack-of-50","provider":"GearMustHave","version":"1.0","type":"link"}