Disc Spring, Belleville Spring Washer, Chrome, Finish Plain, Min. Inside Dia. 1.313 In, Max. Outside Dia. 4 In, Thickness 0.312 In, Overall Height 0.382 In, Load at Deflection 15760 Lbs., Deflection at Load 0.056 In, Calculated Load at Flat 22670 Lbs., Package Quantity 10