Disc Spring, Belleville, High Carbon Steel, Min Inside Dia 1.000 In, Max Outside Dia 2.000 In, Thickness 0.097 In, Overall Height 0.145 In, Load 1148 Lbs, Deflection @ Load 0.024 In, Flat Load 7246 Lbs, Meets/Exceeds ASTM-A684, Package 12