Ordered as A80447, this is an AS568-447 black Aflas (TFE/P) 80 Shore A O-Ring measuring an inside diameter of 8.975 in (227.97 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 9.525 in (241.94 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
The compound resists strong bases, high-temperature steam, and brake fluids and phosphate esters. That behavior comes from the compound itself: Aflas (TFE/P) delivers high-temperature steam capability that most fluoroelastomers cannot match and exceptional resistance to amine-based additives. Published continuous service range is -25°F (-31.7°C) to 450°F (232.2°C).
You will find this material specified across power generation, oil and gas production, and chemical processing.
Reference part number A80447 when ordering; the item is sold individually. Unit weight is approximately 0.0501 g and nominal inside diameter is listed as 9 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description -447 BLACK AFLAS 80D O-RING
uf_description2 0.275" (6.99MM) CS X 8.975" (227.96MM) ID
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 8.975 inch (227.97 mm)
Actual_OD 9.525 inch (241.94 mm)
ProductCode Description O-Rings - Bulk - Premium