I'm trying to revive an old airless paint sprayer (Wagner W500) and made decent progress until I met the fitting on the paint reservoir.
The male thread OD appears to be close to 0.850" with a pitch of 0.125 though it's a German product so likely not made to Imperial measurements. The male fitting ends in something resembling a slender male flare. But, the threads are too coarse for any flare I've ever seen.
The reservoir is plastic molded around a female brass insert. The plastic has cracked radially, allowing paint to leak around the periphery of the brass insert. There's no easy way to seal the cracks and they'll likely keep growing anyway. A new reservoir is hard to find and expensive, $100-$200 depending on where I look, with lots of "out of stock" notes. There don't seem to be any aftermarket suction hose kits, as this pump is top-inlet and the modern types are all bottom-inlet.
Does anybody recognize those dimensions as any standard fitting type? I _think_ the path of least resistance will be to fabricate a suction pickup hose. If there do exist "standard" fittings of this type that seems the place to start. If the threads are orphans I could try to fabricate something cobbled up using the brass insert as a foundation.
Thanks for reading, I think mentioning "brass" makes this an on-topic post 8-)
bob prohaska