Sterling Seal & Supply Seals have a compression set of only 8 percent after 22 hours at 392°f. They have outstanding resistance to fuel, including gasoline and diesel Sterling Seal & Supply Seals have a volume swell of only 1 percent after 70 hours at 73°f in reference fuel C. They also meet popular aerospace specifications Sterling Seal & Supply Seals exceed the requirements of AMS 7259. These seals are suitable for applications ranging from -20 to +400°f 1-9/16" ID nominal x 1-3/4" OD nominal x 3/32" CS Nominal