Thanks to all, my conclusion is that this combination of materials may be used up to 100 deg C only, due to the Buna N, and that even 105 deg C is a little too high a rating.
Heyco makes a liquid tight pigtail fitting P/N M4396 which is molded from Nylon 6/6 with the sealing gland made from Buna N. Their maximum usage temperature spec for the part is 105 deg C max. I need to find a part like this that I can use at 120 deg C. Has anyone had any experience in using...
