Compression Spring Conical 302 Stainless Steel Finish Plain Overall Length 1 In Wire Type Round Wire Dia 0.035 In End Type Squared and Not Ground Large Outside Dia 0.720 In Small Outside Dia 0.375 In LD @ 50% FREE LENGTH 1.80 Lbs LOAD @ SOLID 3.34 Lbs Spring Rate 3.59 Lbs/In Meets/Exceeds ASTM A313