Disc Spring, Belleville, 302 Stainless Steel, Min Inside Dia 0.656 In, Max Outside Dia 1.312 In, Thickness 0.098 In, Overall Height 0.126 In, Load 2050 Lbs, Deflection @ Load 0.022 In, Flat Load 115 Lbs, Meets/Exceeds ASI 302 and Government AMS Type 302, Package 6