Steel, 0.119 in. Us gage, 11.125 in. Min, 11.130 in. Max od, 3.026 in. Min, 3.030 in. Max id, 1.000 in. H, w/spring ability, w/6 ribs equally spaced, 6 holes 0.195 in. Nom dia, equally spaced on 4.125 in. Circle radius, 6 holes 0.195 in. Nom dia, equally spaced on 5.344 in. Circle radius