Disc Spring,Metric Disc Spring,Carbon Steel,Finish Oil,Min. Inside Dia. 0.244 In.,Max. Outside Dia. 0.492 In.,Thickness 0.5mm,Overall Height 0.85mm,Load @ Deflection (Lbs.) 326N,Deflection @ Load 0.26mm,Calculated Load @ Flat (Lbs.) 609N,Meets/Exceeds DIN 2093,Package Quantity 10