before i noticed any sort of leak from my transmission cooler i had a leak from my radiator.. long story short i replaced the radiator and thermostat to have an ATF leak through the temp sensor the following day. I noticed that it has no O ring..Wondering if a 5/16th" O ring would hold up or if i could just torque it down. im just not looking to have to remove it again 3 times in one week and trying to save up for new tires so ultimately not trying to spend money or repairs.. any knowledge?

and does anyone know how much psi is flowing through this component??

~British Steel