-250 BLACK AFLAS 80D O-RING

The A80250 is an AS568-250 black Aflas (TFE/P) 80 Shore A O-Ring measuring an inside diameter of 4.984 in (126.59 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.262 in (133.65 mm). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

It resists sour gas and hydrogen sulfide, strong bases, and hot water. Aflas (TFE/P) is widely chosen for exceptional resistance to amine-based additives and high-temperature steam capability that most fluoroelastomers cannot match. Rated temperature range runs from -25°F (-31.7°C) to 450°F (232.2°C) in continuous service. It should not be specified for service in some chlorinated solvents or aromatic hydrocarbons.

It sees regular use in power generation, geothermal equipment, and chemical processing.

A80250 ships individually. Unit weight is approximately 6.449 g and nominal inside diameter is listed as 5 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.