Extension Spring Utility Standard Steel Oil End Type Machine Half Loop Overall Length 9-55/64 in Outside Dia 0.810 in Wire Dia 0.070 in Fabric Sleeve Outside Dia 0.94 in Load (Lbs.) 5.60 Deflection @ Load 1.99 in Spring Rate (Lbs./in) 0.75 Meets/Exceeds ASTM A227/A228 and AMS 5112