Compression Spring, Precision, High Carbon Steel Music Wire, Finish Plain, Overall Length 13/16 In, Outside Dia 0.360 In, Wire Type Round, Wire Dia 0.042 In, End Type Closed and Ground, Compressed Length 0.306 In, Load 9.8 Lbs, Deflection @ Load 0.35 In, Spring Rate 28 Lbs/In, Meets/Exceeds ASTM A228, Package 5