Back Home / Fleet & Automotive / O Rings / O RING 2-1/2″ID, 2-5/8″OD, 1/16″THK O RING 2-1/2″ID, 2-5/8″OD, 1/16″THK SKU: OR037 Categories: Fleet & Automotive, O Rings Buna N rubber. 70 durometer. Backbone of the O-ring line. General purpose. Compatible with petroleum fluids, water (to 212°F), silicone fluids, Ethylene Glycol. Universal sizing. Available in assortment OR116A. Case Quantity: 25 Log In For Pricing