Disc Spring Metric Disc Spring High Carbon Steel Finish Phosphate Min Inside Dia 0.135 in Max Outside Dia 124.0mm Thickness 1.25mm Overall Height 3.0mm Load @ Deflection (Lbs.) 441N Deflection @ Load 1.31mm Meets/Exceeds GB/T 1222-2007 ASTM-A684 Package Quantity 10