A80249 is an AS568-249 black Aflas (TFE/P) 80 Shore A O-Ring built to an inside diameter of 4.859 in (123.42 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.137 in (130.48 mm). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies.
It resists hot water, strong bases, and amines and corrosion inhibitors. That behavior comes from the compound itself: Aflas (TFE/P) is valued for high-temperature steam capability that most fluoroelastomers cannot match and exceptional resistance to amine-based additives. Service temperature is rated from -25°F (-31.7°C) through 450°F (232.2°C). Exposure to aromatic hydrocarbons or some chlorinated solvents will shorten service life.
Maintenance and OEM teams specify it across downhole tooling, geothermal equipment, and power generation.
This item is sold individually under part number A80249. Unit weight is approximately 6.2929 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description -249 BLACK AFLAS 80D O-RING
uf_description2 0.139" (3.53MM) CS X 4.859" (123.42MM) ID
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 4.859 inch (123.42 mm)
Actual_OD 5.137 inch (130.48 mm)
ProductCode Description O-Rings - Bulk - Premium