Compression Spring Conical 302 Stainless Steel Finish Plain Overall Length 3/4 In Wire Type Round Wire Dia 0.045 In End Type Squared and Not Ground Large Outside Dia 0.720 In Small Outside Dia 0.281 In LD @ 50% FREE LENGTH 4.83 Lbs LOAD @ SOLID 8.49 Lbs Spring Rate 12.87 Lbs/In Meets/Exceeds ASTM A313