Its a simple toggle switch from Carling. Do you recall the function? example you push it one way or the other and it spring returns back to the middle, or does it stay on the position you push it toward?
Let me know the operation/ Function and I will build a part number for you.
Buzz@pts-rep.com
Look like an old V series illuminated toggle. I would just get the V series rocker and put back in it.