{"product_id":"mr-o-ring-906-viton-o-ring-90a-durometer-pack-of-500-high-temp-seal","title":"Mr O-Ring 906 Viton O-Ring 90A Durometer Pack of 500 - High Temp Seal","description":"\u003cp\u003eIn this review the Mr O-Ring 906 Viton O-Ring 90A is examined for users who need a reliable, high-temperature seal in bulk. The bottom line: this pack of 500 o-rings is aimed at shops, maintenance teams, and engineers who require consistent dimensions and excellent resistance to fuels, oils and high heat; the biggest reason to buy is its broad chemical compatibility and a usable temperature range up to 232C, which keeps assemblies sealed where many other elastomers would fail.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e FKM Viton construction provides durable resistance to fuels, mineral oils and many solvents, reducing seal failures in aggressive environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e 90A durometer offers a firm seal that holds shape under pressure while still compressing enough to create a reliable fluid-tight barrier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize accuracy:\u003c\/strong\u003e Actual dimensions of 0.468 in ID, 0.624 in OD and 0.078 in cross-section match AS568 sizing for predictable fit in standard housings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e Rated from -26C (-15F) to 232C (450F), allowing use across very low to very high temperature applications without rapid degradation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk quantity:\u003c\/strong\u003e Pack of 500 supplies multiple repair jobs or production runs, lowering per-piece cost and saving time on frequent replacements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShelf-life:\u003c\/strong\u003e Essentially unlimited shelf-life makes storage simple for spares or inventory without concern for early aging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis o-ring pack is best for maintenance shops, industrial technicians, HVAC and hydraulic professionals who service engines, pumps and fluid systems exposed to petroleum products, diesel, biodiesel blends, silicone oils or harsh chemicals. The bulk quantity and AS568 sizing make it a convenient choice for anyone who needs many identical, reliable seals on hand.\u003c\/p\u003e\n\u003cp\u003eThose looking for extremely soft seals for low-friction dynamic shafts or for specialty low-temperature-only elastomers should look elsewhere, as the 90A durometer is on the firmer side and optimized for durability rather than ultra-soft sealing feel.\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 thanks to Viton (FKM) material, extending lifetime in harsh fluids.\u003c\/li\u003e\n\u003cli\u003eConsistent AS568-equivalent sizing ensures interchangeability with standard o-ring grooves and hardware.\u003c\/li\u003e\n\u003cli\u003eLarge pack size of 500 is economical and practical for frequent repairs or assembly work.\u003c\/li\u003e\n\u003cli\u003eWide temperature tolerance supports both high-temp and many vacuum applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e90A hardness may be too firm for some low-pressure dynamic seals or applications that need a softer durometer for better conformity.\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 (FKM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDurometer\u003c\/td\u003e\n\u003ctd\u003e90A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual ID\u003c\/td\u003e\n\u003ctd\u003e0.468 in (11.89 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual OD\u003c\/td\u003e\n\u003ctd\u003e0.624 in (15.85 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCross-section\u003c\/td\u003e\n\u003ctd\u003e0.078 in (1.98 mm)\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 size\u003c\/td\u003e\n\u003ctd\u003e500 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Mr O-Ring 906 Viton 90A pack is a strong value for professionals who need long-lasting seals resistant to fuels, oils and high temperatures. The accurate dimensions and AS568 compatibility make it easy to replace standard o-rings, and the bulk quantity reduces downtime and cost per unit, so shops and service teams will find this a practical, dependable choice.\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 designed to perform well with petroleum products, diesel and biodiesel blends, making these rings suitable for fuel system seals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size are these o-rings in metric?\u003c\/strong\u003e\u003cbr\u003eThe pack lists dimensions as 11.89 mm ID, 15.85 mm OD and 1.98 mm cross-section.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan these be used at high temperatures?\u003c\/strong\u003e\u003cbr\u003eYes; the rated operating range extends to 232C (450F), appropriate for many high-temperature sealing applications.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48256120815835,"sku":"B07R62TDWY","price":64.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51Kuv29LevL._SL1000_faa29de3-6202-4dc1-9088-393f1371e0ad.jpg?v=1778225936","url":"https:\/\/gearmusthave.com\/products\/mr-o-ring-906-viton-o-ring-90a-durometer-pack-of-500-high-temp-seal","provider":"GearMustHave","version":"1.0","type":"link"}