Disc Spring, Curved, High Carbon Steel, Min Inside Dia 0.663 In, Max Outside Dia 0.980 In, Thickness 0.014 In, Overall Height 0.169 In, For Hole Size 1 In, For Rod Size 5/8 In, Load 7 Lbs, Deflection @ Load 0.092 In, Meets/Exceeds ASTM-A684, Package 10