Disc Spring,Metric Disc Spring,High Carbon Steel,Finish Phosphate,Min. Inside Dia. 181.0mm,Max. Outside Dia. 268.0mm,Thickness 2.50mm,Overall Height 5.7mm,Load @ Deflection (Lbs.) 1160N,Deflection @ Load 2.40mm,Meets/Exceeds GB/T 1222-2007, ASTM-A684,Package Quantity 10