Questions on SAE J514 ports
Questions on SAE J514 ports
(OP)
Hi all,
I'm working on a new project where we have an AN-4 port in our product. The AN spec is now covered by SAE J514, and I have been trying to find a port cutting tool to give to our machinist to make this port. All the port cutting tools that I have found so far that claim to match the SAE J514 spec have a 30 degree seat angle instead of the 37 degree angle that the J514 specification calls out. After calling the two different tool manufacuturers I have been told that a tool with the 37 degree seat angle would be a special order part with a 5 to 6 week lead time. I need to have this part made as soon as possible and do not want to wait the 5 to 6 weeks just for a porting tool.
Can anyone explain to me why these tool cutters specificty both the SAE J514 and SAE J1926 for the same tool? Also is there a separate specification for the port dimensions for J514 fittings? I recently obtained a copy of the J514 spec and only fitting dimensions are given. I'm a recently graduated engineer and this is the first time my company is doing a fluid power project, so any help or insight would be greatly appreicated!
Thanks,
Ramitha
I'm working on a new project where we have an AN-4 port in our product. The AN spec is now covered by SAE J514, and I have been trying to find a port cutting tool to give to our machinist to make this port. All the port cutting tools that I have found so far that claim to match the SAE J514 spec have a 30 degree seat angle instead of the 37 degree angle that the J514 specification calls out. After calling the two different tool manufacuturers I have been told that a tool with the 37 degree seat angle would be a special order part with a 5 to 6 week lead time. I need to have this part made as soon as possible and do not want to wait the 5 to 6 weeks just for a porting tool.
Can anyone explain to me why these tool cutters specificty both the SAE J514 and SAE J1926 for the same tool? Also is there a separate specification for the port dimensions for J514 fittings? I recently obtained a copy of the J514 spec and only fitting dimensions are given. I'm a recently graduated engineer and this is the first time my company is doing a fluid power project, so any help or insight would be greatly appreicated!
Thanks,
Ramitha





RE: Questions on SAE J514 ports
The o-ring seat comprises a 45 degree half-angle bevel, and for the smaller sizes, a 12 degree half-angle bevel, plus a spotface and a reamer or a pilot.
The first time I specified these ports, for a manifold, I put the whole spec on my drawing, and our machinists made the bevels with homemade flycutters. I asked them why they didn't buy the spotface/countersink tools, and they admitted they didn't know about them; they'd only worked with NPT crap before I got there.
Just buy the cutters.
Mike Halloran
Pembroke Pines, FL, USA
RE: Questions on SAE J514 ports