Disc Spring Split Wave Springs Stainless Steel Finish Plain Min Inside Dia 0.093 in Max Outside Dia 420.0mm Thickness 1.07mm Overall Height 4.0mm For Rod Size 5/16 in Load @ Deflection (Lbs.) NA Deflection @ Load 8.89mm Meets/Exceeds 17-7 PH Condition C CH-900 AMS-5529 Package Quantity 10