FS65 Series Standard Duty Balanced Pressure Swivel Joint, 1/2-14 Female Pipe Casing Thread To 1/2-14 Female Pipe Sleeve Thread

It is 1/2-14 female pipe casing thread on one end and 1/2-14 female pipe sleeve thread on the other, and both ends use NPTF female threads with a 0.5 inch nominal size.

For half-inch size, 3500 PSI is right at the rated working pressure, so you're operating at the limit rather than comfortably within it. That's worth knowing before you commit. The balanced-pressure design does help keep things stable across that range, and the contamination seals add some protection against wear over time. If your system sees occasional spikes above that threshold, you'd want to think about stepping down to a 1/4 or 3/8 size fitting rated at 5000 PSI instead, assuming your line size allows for it.

Rated for a minimum working temperature of -40 degrees, this joint will handle hydraulic fluid at -20 degrees without issue.