Compression Spring, Conical, 302 Stainless Steel, Finish Plain, Overall Length 1/4 In, Wire Type Round, Wire Dia 0.029 In, End Type Squared and Not Ground, Large Outside Dia 0.420 In, Small Outside Dia. 0.218 In, LD @ 50% FREE LENGTH 2.04 Lbs, LOAD @ SOLID 3.14 Lbs, Spring Rate 16.38 Lbs/In, Meets/Exceeds ASTM A313