Question re: Chipped threads on brass fittings

[J.Btfsplk]

Hi all,

I humbly ask for the advice of the wise here....

I have several 3/4" mip threaded brass nipples that are part of a gas tank water heater install. Three out of four have very small chips/defects in the threads. Are those chips acceptable (y'know - amateurs and mountains vs. molehills and all that), or should I swap them out? And, if I should swap them, is there a brand you'd recommend?


Thanks, everyone, for any help you can offer. Always appreciate the quality of the info & insight I find on here. And happy Friday!

 

[Reach4]

You want to find a die. Some are called thread chasers. Are those tapered NPT threads? Probably yes, but you might check. I think 3/4 is 14 TPI.

https://www.ebay.com/itm/311308304459

 

[Sponsor]

 

[Breplum]

I would normally return to the supplier but, might consider trying if not part of a chain of fittings.
Teflon tape and joint compound.

 

[J.Btfsplk]

Thank you, @Reach4 and @Breplum.

I see your point, @Breplum, about if it's part of a chain of fittings or not - and it is. Good to know about those rethread chasers, @Reach4.

I'll see about returning to the supplier first and then the re-thread route. I haven't done any metal machining type work before so it could be an excuse to explore.

Thanks - yet again! - for your help. Have a great weekend

 

[JohnCT]

Thank you, @Reach4 and @Breplum.

I see your point, @Breplum, about if it's part of a chain of fittings or not - and it is. Good to know about those rethread chasers, @Reach4.

I'll see about returning to the supplier first and then the re-thread route. I haven't done any metal machining type work before so it could be an excuse to explore.

Thanks - yet again! - for your help. Have a great weekend

I would follow both advice - chase the threads first and use dope and teflon tape.

John