Ordered as A80370, this is an AS568-370 black Aflas (TFE/P) 80 Shore A O-Ring with an inside diameter of 8.225 in (208.92 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 8.645 in (219.58 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
Expect good resistance to strong bases, sour gas and hydrogen sulfide, and amines and corrosion inhibitors. Aflas (TFE/P) is valued for exceptional resistance to amine-based additives and high-temperature steam capability that most fluoroelastomers cannot match. Continuous operating temperature is published at -25°F (-31.7°C) to 450°F (232.2°C). Exposure to low-temperature dynamic service or some chlorinated solvents will shorten service life.
Maintenance and OEM teams specify it across geothermal equipment, oil and gas production, and power generation.
Order part number A80370, sold individually. Unit weight is approximately 0.0273 g and nominal inside diameter is listed as 8 1/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description -370 BLACK AFLAS 80D O-RING
uf_description2 0.21" (5.33MM) CS X 8.225" (208.91MM) ID
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 8.225 inch (208.92 mm)
Actual_OD 8.645 inch (219.58 mm)
ProductCode Description O-Rings - Bulk - Premium