The Unknown Fitting...
 

I have a teague marine stainless crossover with a 3/8" mpt bypass fitting. I also have a stainless marine thermostat housing with a built in bung for a 3/4" hose. The problem is that I can't find a barb fitting for a 3/4" hose to 3/8" mpt fitting. The closest that I've gotten is through McMaster-Carr. They had a 3/8"mpt to 5/8" hose, and only in a pack of ten! Does anybody have a source that I could try, or is anybody capable of making the fitting? Thanks in advance!

If you do not want to use a bell reducer and a 3/8" close nipple let me know I may have a catalog at my shop that will have a 3/8" NPT X 3/4" barb.

Yes, I do not want to use a reducer. What does your catalog list?

Cord if you are really in a jam let me know I have a machinist next door that makes me lots of parts and he can no doubt put together one for you.

Jon

TTT