replacing ac condenser 3.0 v6 on 2004 Ford Escape

there are two flanges connecting lines from engine compartment to condenser with one stud and nut each flange. are these an inner o-ring seal or metal to metal seal or gasket? i dont know if new condenser i have on order will come with any of these. would be thankful for an answer to this. thanks perry

the seals come with the condenser. make sure you change the dryer and add oil before vacuuming it out.

thank you for info perry