Compression Spring, Conical, 302 Stainless Steel, Finish Plain, Overall Length 1 1/4 In, Wire Type Round, Wire Dia 0.035 In, End Type Squared and Not Ground, Large Outside Dia 0.720 In, Small Outside Dia. 0.343 In, LD @ 50% FREE LENGTH 2.04 Lbs, LOAD @ SOLID 3.86 Lbs, Spring Rate 3.27 Lbs/In, Meets/Exceeds ASTM A313