Wave spring washers

The rate is approximately linear between 20% and 80% of available deflection.
Stainless steel (parts with suffix `R’ or `S’)
Commercial -Type 302
Government per AMS 5906 (chemical only) -Type 302
High Carbon Steel
Commercial -1074-1095 certified to ASTM-A684
Washers carried in stock are in plain finish suitable for various types of finishes: either with electroplated or mechanically plated, a process which reduces the possibility of hydrogen embrittlement.