Depending on the exact mechanical load and material used to print, you might get away with 100°C. Next to the melting temperature required to print the material (Which will always be substantially higher than the maximum useable temperature!), you probably also want to have a look at the glass temperature of your specific material. Around that temperature your material becomes soft (rubber like) and can deform permanently when cooling down again. Chances exist that under a considerable mechanical load, the part will deform at even lower temperatures. Maybe it would help to post a picture or describe the exact component you're trying to replicate. It might help in finding an alternative solution. (Eg carving out of say PEEK to say anything.)

Depending on the exact mechanical load and material used to print, you might get away with 100 °C.

Next to the melting temperature required to print the material (which will always be substantially higher than the maximum useable temperature!), you probably also want to have a look at the glass temperature of your specific material. Around that temperature your material becomes soft (rubber like) and can deform permanently when cooling down again. Chances exist that under a considerable mechanical load, the part will deform at even lower temperatures.

Maybe it would help to post a picture or describe the exact component you're trying to replicate. It might help in finding an alternative solution. (E.g. carving out of say PEEK to say anything.)