Disc Spring Wave High Carbon Steel Finish Plain Min Inside Dia 3.890 in Max Outside Dia 4.997 in Thickness 0.050 in Overall Height 0.355 in For Hole Size 0.1875 For Rod Size 0.093 Load @ Deflection (Lbs.) 1030 Deflection @ Load 0.172 in Meets/Exceeds ASTM-A684