Compression Spring Conical 302 Stainless Steel Finish Plain Overall Length 5/16 In Wire Type Round Wire Dia 0.038 In End Type Squared and Not Ground Large Outside Dia 0.480 In Small Outside Dia 0.187 In LD @ 50% FREE LENGTH 5.02 Lbs LOAD @ SOLID 7.60 Lbs Spring Rate 32.13 Lbs/In Meets/Exceeds ASTM A313