Disc Spring Split Wave Springs High Carbon Steel Finish Plain Min Inside Dia 0.093 in Max Outside Dia 165.0mm Thickness 0.76mm Overall Height 3.2mm For Hole Size 0.1875 For Rod Size 5/16 in Load @ Deflection (Lbs.) NA Deflection @ Load 10.41mm Meets/Exceeds SWRH72A GB4357-B Package Quantity 10