Spring Washers  
   
Applies a predetermined force on adjacent members in an assembly.
Dampens vibration.
Eliminates side or end-play.
Controls end pressure.
Keeps fasteners secure.
Accommodates thermal or pressure expansions and contractions.
Applies drag or resistance to turning.
Available in Beryllium Copper and Spring Steel (carries higher loads).
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Conical/Belleville 5808
Supports relatively high loads with relatively small deflection
Variable load-deflection characteristics depending on ration of height to thickness
Commonly used to maintain tension of assemblies in conditions of thermal expansion and contraction
Maintains tension under bolt heads
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Crescents 5804
Supports relatively light loads with relatively wide deflection range
Uniform spring rate over deflection range
Best suited for applications which require flexibility, frequent load cycling and light loads
Linear load-deflection characteristics
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Dome 5810
Very high load capacity with very small deflective
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Wave 5806
Moderate load capacity with moderate deflection range
Often used as cushion springs or spacers on a shaft
Linear load-deflection characteristics to approximately 80% of maximum deflection
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Single Wave 5807
Similar to crescent washers with a flat bearing surface to minimize abrasion for soft assemblies/surfaces
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Compartment door latch preloaded with Cresent Washer.
Bearing preloaded with a wave washer.