Compression Spring, Heavy Duty, Color Dark Gray, Music Wire, Finish Plain, Overall Length 3/4 In., Outside Dia. 31/32 In., Wire Type Round, Wire Dia. 0.074 In., End Type Squared and Ground, Large Outside Dia. 0.360 In., Small Outside Dia. 0.125 In., Compressed Length 0.295 In., Deflection @ Load 0.30 In., Spring Rate 40 lb./in., Meets/Exceeds ASTM A228 and AMS 5112, Package Quantity 10