Compression Spring Conical 302 Stainless Steel Finish Plain Overall Length 3/4 In Wire Type Round Wire Dia 0.067 In End Type Squared and Not Ground Large Outside Dia 0.975 In Small Outside Dia 0.375 In LD @ 50% FREE LENGTH 11.44 Lbs LOAD @ SOLID 18.78 Lbs Spring Rate 30.51 Lbs/In Meets/Exceeds ASTM A313