Disc Spring Metric Disc Spring High Carbon Steel Finish Phosphate Min Inside Dia 60.5mm Max Outside Dia 89.5mm Thickness 0.90mm Overall Height 2.5mm Load @ Deflection (Lbs.) 288N Deflection @ Load 1.20mm Meets/Exceeds GB/T 1222-2007 ASTM-A684 Package Quantity 10