3/8 npt to 5/8 barb - SailNet Community
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post #1 of 17 Old 05-03-2013 Thread Starter
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3/8 npt to 5/8 barb

I'm having no luck finding this fitting in bronze or marelon. Groco, perko, forespar, apollo. None of these manufacturers make 3/8 stuff. Any ideas?
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post #2 of 17 Old 05-03-2013
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Re: 3/8 npt to 5/8 barb

3/8 male or female, straight, 90, 45? photo would help
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Re: 3/8 npt to 5/8 barb

yes, that would help. i need a straight fitting, male 3/8 npt to 5/8 hose barb,

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post #4 of 17 Old 05-03-2013
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Re: 3/8 npt to 5/8 barb

What will this be used for?

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Re: 3/8 npt to 5/8 barb

You may need to do a 3/8-1/2" npt m-f reducer, then a 1/2"npt-5/8"barb. I've had to do that type of thing to get what I want in pipe fittings thru the years doing outdoor sprinkler work. Sometimes the fitting you want, literally does not exist, you you adapt!

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Re: 3/8 npt to 5/8 barb

The standard one is 3/4 NPT X 5/8 in marelon or bronze



3/8 to 5/8 shows up in Google BUT it is brass or NON-MARINE PVC

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Re: 3/8 npt to 5/8 barb

the fittings are for my raw water pump.
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post #8 of 17 Old 05-03-2013
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Re: 3/8 npt to 5/8 barb

You are going to want to match the material of the hose barb adapter to whatever the 3/8 npt is mating to. 3/8 is not a typical thread size for bronze hardware so that's why it's hard to find. If it's brass then you can use brass for the application and brass barbs of that size are sold here:

https://www.fisheriessupply.com/midl...machined-brass

Otherwise, you might try Grainger Industrial Supply - MRO Supplies, MRO Equipment, Tools & Solutions They have a good selection of all sorts of fittings.

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Re: 3/8 npt to 5/8 barb

Is this on and A4 water pump ?

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Re: 3/8 npt to 5/8 barb

it's on a jabsco 2620 series pump with a bronze body.
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