I am a moron...headlight switch

[Mad Dog]

I tore my dash apart last fall, and I can't seem to remember how the headlight switch gets replaced. I lost the original bezel, so I ordered a new one....but I'm staring at the new bezel(female threads) and the switch(female threads) and wondering what else is needed. Is there some kind of sleeve that I am missing? I have looked in most of the parts catalog and can't find any parts listed....what am I missing?

It's a 72 Chevt with gauges and factory tach if that makes a difference.

[BACKYARD88]

There's a nut with male threads on both ends and a star lock washer that holds it from the outside.
Edit: I think it's #13 "ferrule" in this illustration but don't hold me to it.

[67ChevyRedneck]

Yup, install switch from behind dash, put on star washer, put on nut, snug it down, the plastic dash bezel goes over that (you can do this with the dash bezel still in place), then the metal bezel screws down over the plastic dash bezel.