We used this on the submarine once. Underway on strategic deterrent patrol, thousands of miles from anywhere, and desperate to get a bearing installed. One of the old chiefs knew that the process called for heating the one side and cooling the other, so we did our best: we put the hot-parts in the oven, all the way in the forward compartment of the submarine, and the cold-parts in the chill-box, right next to the galley. There's two watertight doors and 3 ladders between the oven and the work site. I have this striking mental image of the XO supervising a pair of mechanics with hot-gloves, speed-walking this thing through the missile compartment.
Nutty. I should write a book.