small fitting on ps.valve???

1970 charger the small threaded fitting that goes into the control valve?? they are unquie i guess where do i get one i have treid every parts house you could think of any body know or have an extra?

Hydraulic shop Going off memory so not 100% but I'm thinking #5 "O" ring boss threads into the box & 1/4" inverted flare for the hose.. If you can take the parts along to match up that would be best....