Compression Spring Conical 302 Stainless Steel Finish Plain Overall Length 1 In Wire Type Round Wire Dia 0.040 In End Type Squared and Not Ground Large Outside Dia 0.720 In Small Outside Dia 0.281 In LD @ 50% FREE LENGTH 3.31 Lbs LOAD @ SOLID 6.08 Lbs Spring Rate 6.61 Lbs/In Meets/Exceeds ASTM A313