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To: FamiliarFace

Yes, a few years ago Menards put in a store about 20 minutes from us, and we go that way fairly often (closest decent size town.)


404 posted on 05/12/2025 8:19:21 PM PDT by Paul R. (Old Viking saying: "Never be more than 3 steps away from your weapon ... or a Uriah Heep song!" ;-))
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To: Paul R.; Pollard; All

I think this is one for Pollard, but if someone else knows, please chime in:

I want to replace what I guess I’ll call the “output fitting” (adapter) on a small Campbell-Hausfeld compressor my Dad gave me many years back. However, the threading into the compressor is not std. 1/4” NPT. It is slightly bigger — my caliper measures the thread OD on the compressor side of the fitting / adapter at 0.558”, and there is an O-ring on the “bolt”.

https://www.depatie.com/site/Landing%20Page%20Content/Depatie%20Landing%20Pages/Customer%20Resource%20Library/thread-img13.jpg

(Depatie is a great resource, BTW.)

So... This appears to be a 3/8” SAE Straight Thread O-ring (O-Ring Boss) / SAE J1926-1 (and ISO 11296-1) male connection. The other side of this (straight / no elbow) adapter is 1/4” NPT (actually NPTM) (and I think it’s a compression end) and then THAT goes into a 1/4” NPTF to 1/4” hose barb straight adapter. The hose then runs to the tank.
Rube would be proud.

Unfortunately, after a bunch of searching, my odds of finding a right angle* version of the Boss end adapting to a 1/4” hose barb seem to be nil. It took a lot of searching just to find THIS:

https://www.amazon.com/dp/B07ZDKY2YG?psc=1&language=en_US

and fortunately it’s on Amazon with free shipping available if I order some other stuff, which I need to do. So, it’ll still be “Rube”, feeding the hose barb adapter, BUT, at least it will be “better” Rube.** I’d rather have brass than steel, but, this should last for my lifetime, anyway, and probably for the life of the compressor. Plus I’ll apply anti-seize compound. Maybe I’ll wipe on a little Corrosion Pro on the outside of the steel :-)

*Basically I want to go to a right angle fitting because the current straight fitting points the air hose protruding “out” at a right angle to the compressor, where it is easily banged or scraped against “stuff”. “Stuff” includes, on occasion, my leg, but my leg isn’t what tends to beat up the air hose the most... Doorways are good (as in: bad). I’ve just had the air hose pop a leak again right where it gets “hard flexed” coming out of that fitting. Pffft!

Pollard, or anyone, if you know of a better/ cheaper way to go from a 3/8” O-Ring Boss to a 1/4” air hose, turning a tight 90 deg. to parallel the compressor housing in the process, please advise.

Oh, BTW, top pressure this compressor can hit is barely over 100 psi. So, we’re not talking any kind of crazy pressures here. :-)

Now, to go effect a temporary repair until the part comes in...


410 posted on 05/13/2025 1:17:19 PM PDT by Paul R. (Old Viking saying: "Never be more than 3 steps away from your weapon ... or a Uriah Heep song!" ;-))
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