Banjo brake line washers

There is no ring to sand off of the banjo, and did not touch the caliper. I have switched to DOT 5 brake fluid, if it's job specfic, shouldn't it stand up to brake fluid?
I will keep an eye on it I guess. The person that I got these from does custom car work, has for a long time. The washers were in all of his brake stuff.


these
https://www.bing.com/images/search?view=detailV2&ccid=JUDsTKgW&id=D6CB4FC37870724212507F78144CB2497D8EC24A&thid=OIP.JUDsTKgWEFMxWlnKX6ZvrQHaFj&mediaurl=https%3a%2f%2fwww.racingplanetusa.com%2fimages%2fgross%2fIP38783-10.jpg&cdnurl=https%3a%2f%2fth.bing.com%2fth%2fid%2fR.2540ec4ca8161053315a59ca5fa66fad%3frik%3dSsKOfUmyTBR4fw%26pid%3dImgRaw%26r%3d0&exph=1050&expw=1400&q=banjo+sealing+rings&simid=608044142399936278&FORM=IRPRST&ck=DA4E83C5E48E4DC08554186C6E065FAA&selectedIndex=111
seem to fit the bill/did you reaad the specs ? worth contacting for sizes..