Disc Spring, Curved, 301 Stainless Steel, Min Inside Dia 0.327 In, Max Outside Dia 0.612 In, Thickness 0.013 In, Overall Height 0.077 In, For Hole Size 5/8 In, For Rod Size 5/16 In, Load 9 Lbs, Deflection @ Load 0.042 In, Meets/Exceeds AISI Type 302, Package 10