I thought it looked deformed. Thank you emonty. I'm going to place an order for a 100 of them tonight. Smallest order I could find to place for those nylon shoulder washers.
On another note, that's when I think I remember noticing it "melt". When I was having firing issues and black build up. I made a new coil and got rid of the washers and spring, and since then I don't get the super-hot top cap any more, black stuff, or firing issues.
Where'd you order those washers from?