-239 BLACK AFLAS 80D O-RING

Part number A80239 is an AS568-239 black Aflas (TFE/P) 80 Shore A O-Ring measuring an inside diameter of 3.609 in (91.67 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.887 in (98.73 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Expect good resistance to sour gas and hydrogen sulfide, brake fluids and phosphate esters, and high-temperature steam. That behavior comes from the compound itself: Aflas (TFE/P) is specified for strong resistance to rapid gas decompression and proven performance in aggressive downhole environments. Continuous operating temperature is published at -25°F (-31.7°C) to 450°F (232.2°C).

You will find this material specified across oil and gas production, power generation, and geothermal equipment.

Stocked as A80239 and sold individually. Unit weight is approximately 4.719 g and nominal inside diameter is listed as 3 5/8 inch. Review your operating media and conditions against this specification before installation.