[Dad's RV-10]

Depicted is a $5 momentary NO Gardner Bender switch from Home Depot. It has the concave button head I'm seeking but the action is spring loaded with no positive, tactile click.

Does anyone know of a similar NO switch with a concave button head that makes a tactile "click" when depressed?

 

[fl-mike]

An Otto is going to have that great "fall-through" snap, but I think you would be limited to a flat top, unless you want to Dremel a bit! P1 or P3 series.

 

[Halleffect]

NKK Switches, MB2000 series. Several cap styles available.