With the switch removed, the make and model are identified. The switch is a NOVA KAN-L5 SPST pushbutton switch. This appears to be an imported component from China. I could not find much documentation on the internal details.

Further research indicates the Eureka / Electrolux OEM part is #81142-1. Repair Clinic, an online retailer, shows that their replacement switch is a "Defond CPU-1113"

At my house, every cleaning appliance (vacuum, clothes washer, clothes dryer, etc.) is critical and must be in working order 24 x 7 or my spouse will go out and quickly purchase a new working replacement...therefore I was under pressure to perform a repair or get out the wallet.

It's not often that I've noticed 120VAC switches with removable components so I was intrigued to see the plastic tabs on each side of this switch.