Spring Loaded Contacts in vibrating Environment
If you have a vibration spec you are working to (for example, a relay might be rated to be fully functional under 10 to 55 Hz at double amplitude of 1.6 mm), you can probably mathematically guesstimate the vibration it would take to reduce the force (say) to half the nominal force. If you don't exactly know the mass of the sprung part, you can overestimate it to be safe. I suspect you'll be fine. Mechanical shock is another matter, but if you have a bit of capacitance maybe you'll be able to weather that without a glitch. 

I base my optimism partly on the wide use of pogo-pin type connectors for DSLR batteries, cell phone batteries and such like. As Dave Tweed comments, there are no doubt detailed specifications available for parts used in these applications.