Cone Washers

[dlane]

quite a while back I found a co. that made small spring steel cone washers 4-40 , belview or somthing like it
can't seem to find them anymore.
Any one know of a place that sells just 50 of them , or a way to make some that won't go flat
Thanks

 

[Wreck™Wreck]

Belleville disk springs.
Look here
http://www.mcmaster.com/#disc-springs/=12hxthn

 

[Bob Korves]

Like Wreck says, they are springs, not really washers. Stacked back to back Bellville "washers" work very well as linear springs, more spring power possible than with coil springs, better fatigue life.

Edit: https://en.wikipedia.org/wiki/Belleville_washer

 

[dlane]

Perfect thanks.