Compression Spring, Conical, 302 Stainless Steel, Finish Plain, Overall Length 3/4 In, Wire Type Round, Wire Dia 0.040 In, End Type Squared and Not Ground, Large Outside Dia 0.720 In, Small Outside Dia. 0.343 In, LD @ 50% FREE LENGTH 2.76 Lbs, LOAD @ SOLID 4.92 Lbs, Spring Rate 7.35 Lbs/In, Meets/Exceeds ASTM A313