{"product_id":"019-epdm-o-ring-70a-13-16in-id-15-16in-od-pack-of-1000-durable-seal","title":"019 EPDM O-Ring 70A 13\/16in ID 15\/16in OD Pack of 1000 - Durable Seal","description":"\u003cp\u003eIn this review the 019 EPDM O-Ring is presented as a no-nonsense supply for technicians and hobbyists who need consistent sealing performance in bulk. The bottom line: this pack of 1000 black, 70A durometer EPDM o-rings delivers predictable dimensions and broad chemical and weather resistance, making it a practical choice for maintenance shops, HVAC work, and prototyping where large quantities and reliability matter. The reviewer found the o-rings true to their listed tolerances and well suited to applications that demand ozone and steam resistance.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e EPDM construction offers strong resistance to ozone, sunlight and weather, which reduces unexpected failures outdoors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurometer:\u003c\/strong\u003e 70A hardness provides a balance of flexibility and compression resistance for general sealing tasks across static and some low-dynamic applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk pack:\u003c\/strong\u003e Pack of 1000 supplies a workshop or production run affordably and avoids frequent reordering for common sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e Rated from -55C to 125C so the o-rings work in many cold-weather and high-heat environments up to typical automotive and HVAC service conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical compatibility:\u003c\/strong\u003e Performs well with alcohols, brake fluid, dilute acids and alkalis, silicone oils and greases, and water, making it versatile for maintenance and repair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards:\u003c\/strong\u003e Sized to the 019 AS568 equivalent, giving predictable fit for housings and grooves designed to that standard.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThese o-rings are best for maintenance technicians, facilities staff, HVAC and plumbing professionals, and makers who use standard AS568 sizes frequently and need large quantities on hand. The 70A EPDM compound is particularly suited to outdoor seals, water systems, steam service up to 204.4C for short exposure, and systems exposed to ozone or sunlight.\u003c\/p\u003e\n\u003cp\u003eThose who need resistance to strong hydrocarbons, petroleum oils, or continuous high-temperature sealing above the listed range should look at other elastomers. Also, applications requiring very tight dynamic sealing at high RPMs may want a different durometer or compound tailored for friction and wear.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConsistent nominal and actual dimensions make installation predictable for AS568-019 housings.\u003c\/li\u003e\n\u003cli\u003eGood weathering and ozone resistance extends service life in outdoor and exposed environments.\u003c\/li\u003e\n\u003cli\u003eWide chemical compatibility covers many common fluids encountered in maintenance work.\u003c\/li\u003e\n\u003cli\u003eBulk 1000-pack reduces per-piece cost for shops and projects that use this size often.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEPDM is not suitable for continuous contact with most oils and fuels, so it is not a universal compound for all seal needs.\u003c\/li\u003e\n\u003cli\u003e70A hardness may be firmer than desired for some very low-pressure, ultra-soft-seal applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eEPDM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDurometer\u003c\/td\u003e\n\u003ctd\u003e70A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal dimensions\u003c\/td\u003e\n\u003ctd\u003e13\/16in ID, 15\/16in OD, 1\/16in CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual dimensions\u003c\/td\u003e\n\u003ctd\u003e0.801in ID, 0.941in OD, 0.070in CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetric dimensions\u003c\/td\u003e\n\u003ctd\u003e20.35 mm ID, 23.91 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-55C to 125C (-67F to 257F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack quantity\u003c\/td\u003e\n\u003ctd\u003e1000 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 019 EPDM o-ring in a 1000-piece pack is a practical, cost-effective choice for shops and professionals who need reliable, weather-resistant seals in a standard AS568 size. It is particularly valuable where ozone, sunlight and water resistance matter, and the bulk pack offers good value for frequent use. For oil-heavy or extreme high-temperature continuous service, select a different compound.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these o-rings compatible with brake fluid?\u003c\/strong\u003e\u003cbr\u003eYes, EPDM is compatible with many automotive brake fluids and is listed as performing well with brake fluid in the product information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo the o-rings match AS568 size 019 exactly?\u003c\/strong\u003e\u003cbr\u003eThey are offered to meet the AS568 019 size standard with the listed nominal and actual dimensions for predictable fit in standard grooves.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan these be used in steam applications?\u003c\/strong\u003e\u003cbr\u003eEPDM tolerates steam exposure and is noted for service up to 204.4C (400F) for short exposures, but assess duration and pressure for your specific steam application.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48246326722779,"sku":"B07R542J6G","price":74.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51Kuv29LevL._SL1000_ca0f7e47-1cf3-4bc9-95ff-1a0cb95a1bbc.jpg?v=1771009806","url":"https:\/\/gearmusthave.com\/products\/019-epdm-o-ring-70a-13-16in-id-15-16in-od-pack-of-1000-durable-seal","provider":"GearMustHave","version":"1.0","type":"link"}