Saginaw pump fittings

Did Saginaw pumps ever come with an o-ring fitting? I can't tell if someone used the wrong hose at some time. It has a hose with orings on both ends now and it leaks. Are inverse flare threads and o-ring threads the same? I am trying to get a new pressure hose.
I have a 72 Dart with originally a 318, not sure if I have the original pump or steering sector. Thanks.