Compression Spring Conical 302 Stainless Steel Finish Plain Overall Length 5/8 In Wire Type Round Wire Dia 0.042 In End Type Squared and Not Ground Large Outside Dia 0.720 In Small Outside Dia 0.375 In LD @ 50% FREE LENGTH 3.25 Lbs LOAD @ SOLID 5.62 Lbs Spring Rate 10.39 Lbs/In Meets/Exceeds ASTM A313