Porting a Model without Textures, Collision mesh, etc

It is been a while since I’ve dealt with anything to do with models, so bear with me here.

Is it possible to port a model without any sort of texturing, collision mesh, etc, for visual purposes only?

To clarify, I am porting a model to use as a reference to my brushwork, and I do not care if it has a collision mesh and I do not care if it has no texture; I just want the shape of the model. My question is, will it still be visible in Hammer if I do not texture it or if I do not give it a collision mesh? I do not care if it is not visible in-game.