Disc Spring Metric Disc Spring High Carbon Steel Finish Phosphate Min Inside Dia 106.0mm Max Outside Dia 149.0mm Thickness 1.50mm Overall Height 3.2mm Load @ Deflection (Lbs.) 448N Deflection @ Load 1.28mm Meets/Exceeds GB/T 1222-2007 ASTM-A684 Package Quantity 10