Use Google - select Images - enter microswitch - 46,000 images. Browse through until you see one the approximate shape you need - the general case is a microswitch is a microswitch is a microswitch.
Alternatively - remove your switch and take it to a hobby electronics store for a match.
Voltage, current and the physical mounting arrangement will be the things to consider.
Good luck...
Peccavi, July 2010
