Disc Spring, Curved, 301 Stainless Steel, Min Inside Dia 0.531 In, Max Outside Dia 0.795 In, Thickness 0.017 In, Overall Height 0.098 In, For Hole Size 13/16 In, For Rod Size 1/2 In, Load 8.1 Lbs, Deflection @ Load 0.032 In, Meets/Exceeds AISI Type 302, Package 10