Disc Spring, Belleville, 302 Stainless Steel, Min Inside Dia 0.453 In, Max Outside Dia 1.188 In, Thickness 0.089 In, Overall Height 0.120 In, Load 1890 Lbs, Deflection @ Load 0.025 In, Flat Load 2698 Lbs, Meets/Exceeds ASI 302 and Government AMS Type 302, Package 6