Disc Spring, Curved, 301 Stainless Steel, Min Inside Dia 0.269 In, Max Outside Dia 0.423 In, Thickness 0.008 In, Overall Height 0.055 In, For Hole Size 7/16 In, For Rod Size 1/4 In, Load 2.5 Lbs, Deflection @ Load 0.032 In, Meets/Exceeds AISI Type 302, Package 10