Backup Ring Material Hytrel For Use with AS568A Dash No 256 Thickness 0.045 in Actual Width 0.105 in Nominal Width 1/8 in Actual Inside Dia 5.77 in Nominal Inside Dia 5 3/4 in Nominal Outside Dia 6 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