flat faced couplers

[Flip57]

So I busted the male hydraulic coupler off the machine then stole one off of my dozer blade to keep going. I got on amazon and ordered a new one but I ordered 3/4 NPT thread which does not fit back on. The one I took off was close to 3/4 and had a bevel with an o-ring. Faster 34SAE-7H is stamped on the body of the fitting. Can anyone tell me what I need to order to make sure I get the correct thread? I hate to just keep ordering until I get the right one. Its a little confusing as I cannot see where they specify the tread I've described.

 

[flyerdan]

Found a chart here, near the bottom of the page that has the different fittings manufacturer numbers cross referenced. While I was looking, a chat window popped up, so someone is there to answer questions, at least during the day it would appear.

 

[Flip57]

Found a chart here, near the bottom of the page that has the different fittings manufacturer numbers cross referenced. While I was looking, a chat window popped up, so someone is there to answer questions, at least during the day it would appear.

Thanks flyerdan. I found out that it is an SAE straight thread o-ring (ORB) from the chart you referenced. That was a big help.