COMPRESSION SPRING, CONICAL, 302 STAINLESS STEEL, FINISH PLAIN, OVERALL LENGTH 1/2 IN, WIRE TYPE ROUND, WIRE DIA 0.049 IN, END TYPE SQUARED AND NOT GROUND, LARGE OUTSIDE DIA 0.720 IN, SMALL OUTSIDE DIA. 0.343 IN, LD @ 50% FREE LENGTH 5.73 LBS, LOAD @ SOLID 9.21 LBS, SPRING RATE 22.92 LBS/IN, MEETS/EXCEEDS ASTM A313