[Milsurplus] Source for Leather Washers ?

[KD7JYK DM09]

: Possible. It might also to be possible to form then in a jig, but I'd
: rather buy the correct part, if possible.

I've replaced a LOT of pump leathers in torches and stoves.  In all pumps, 
they are cupped when they come out, whether by design or not, I don't know, 
in all cases the replacements were cut out from flat stock and cupped when 
placed back into the pump body.

Kurt