Disc Spring Metric Disc Spring High Carbon Steel Finish Phosphate Min Inside Dia 111.0mm Max Outside Dia 159.0mm Thickness 1.50mm Overall Height 3.5mm Load @ Deflection (Lbs.) 477N Deflection @ Load 1.50mm Meets/Exceeds GB/T 1222-2007 ASTM-A684 Package Quantity 10