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thedude 05-03-2013 08:32 AM

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?

rugosa 05-03-2013 08:41 AM

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

thedude 05-03-2013 08:55 AM

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,


Maine Sail 05-03-2013 09:03 AM

Re: 3/8 npt to 5/8 barb
What will this be used for?

blt2ski 05-03-2013 09:05 AM

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!


tommays 05-03-2013 10:20 AM

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

thedude 05-03-2013 11:03 AM

Re: 3/8 npt to 5/8 barb
the fittings are for my raw water pump.

Argyle38 05-03-2013 11:36 AM

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:

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

tommays 05-03-2013 12:16 PM

Re: 3/8 npt to 5/8 barb
Is this on and A4 water pump ?

thedude 05-03-2013 12:50 PM

Re: 3/8 npt to 5/8 barb
it's on a jabsco 2620 series pump with a bronze body.

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