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