Replaced the fuel filters on the 1190 and the o ring that seals the pump to the tank ripped. I found one at ace hardware and installed everything. Works fine, no leaks, but is an o ring an o ring, or do I need Viton due to fuel contact?
http://www.saber-cycle.com/blog/2013/02/nitrile-buna-n-vs-viton-fkm-o-rings-for-a-gold-wing-carburetor-o-rings
Nitrile should be fine too.
http://www.timcorubber.com/rubber-materials/nitrile.htm
Hear is a great article on Buna-Ns uses. The only thing to worry about. Is that the durometer is sufficient to handle the pressure, if any.