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Old 02-21-2015, 09:12 AM
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Default Plug for gas fitting

I have been looking for a threaded male plug to seal off a shielding gas fitting.
This fitting normally takes a CGA-032 "B" size right hand nut with 5/8"-18 threads, and a barbed nipple which allows a hose to be hooked up to.

All I want is a male plug with right hand 5/8"-18 threads. Am I not looking in the right places, or do they not make this size of plug..............thanks.
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Old 02-21-2015, 09:56 AM
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Well, it looks like I kind of jumped the gun. I found a plug...........at Advance Auto of all places, that looks like it will work for my application. The only thing that I am not sure about is the letters "S.O" after the size. It lists the plug as being 5/8"-18 S.O..

I would much prefer just a regular brass 5/8"-18 plug, but I think I am out of luck on that...........thanks.
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Old 02-21-2015, 10:19 AM
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Is that an oil drain plug? They do make Single Oversize plugs (S.O.), and larger, where an original plug is a bit loose.
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Old 02-21-2015, 11:55 AM
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Isn't 5/8-18 the normal thread size for 3/8 or -6 fittings?

http://www.muellerindustries.com/upl...20Fittings.pdf


Richard
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Old 02-21-2015, 04:35 PM
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Pop's,

That is exactly what it is..........a replacement oil plug http://shop.advanceautoparts.com/p/n...210&showTitle=

Richard..........I looked at the pdf you attached. I see where somehow a 3/8" is a 5/8"-18. I do not know if that is what I am looking for or not. My "threadology" is very limited...........thanks.
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Old 02-22-2015, 07:02 AM
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Pat, search for "flare plug". Looks like a -6 is 5/8" x 18
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