Disc Spring Belleville Chrome Vanadium Min Inside Dia 1.312 In Max Outside Dia 4.000 In Thickness 0.312 In Overall Height 0.382 In Load @ Deflection (Lbs.) 15 670 Lbs Deflection @ Load 0.056 In Calculated Load @ Flat (Lbs.) 13 921.0 Meets/Exceeds DIN 6796