Injector return washers, 118357ES were available at Amazon online. $4.33 and they had 7 on hand. Took all of them. Ultimately, the parts could have been picked up at a local FNH dealer in Richmond, but at a cost of 20 cents more for each, needing ordered, so would get them at the same time, FEDEX at my farm.
Also, I found the complete return line from my parts Super Dexta, where I had taped the washers to each bleeder nut, so will get the old girl running perfect this weekend. I have a Dexta 152 rebuild kit, that has one of the Combustion Chamber gaskets 957E6K003, so will just use one from the kit.