Backup Ring Material Hytrel For Use with AS568A Dash No 342 Thickness 0.065 in Actual Width 0.164 in Nominal Width 3/16 in Actual Inside Dia 3.65 in Nominal Inside Dia 3 5/8 in Nominal Outside Dia 4 in Cross Section Shape Rectangular Durometer 55 Shore D Durometer (Hardness) Rating Very Hard Color Orange Temp Range -65 Degrees to 275 Degrees F Package Quantity 10