Compression Spring Conical 302 Stainless Steel Finish Plain Overall Length 1 In Wire Type Round Wire Dia 0.055 In End Type Squared and Not Ground Large Outside Dia 0.975 In Small Outside Dia 0.500 In LD @ 50% FREE LENGTH 5.40 Lbs LOAD @ SOLID 9.61 Lbs Spring Rate 10.79 Lbs/In Meets/Exceeds ASTM A313