Extension Spring, Ultra Precision, 302 Stainless Steel, Plain, End Type Full Twist Loops, Overall Length 3/4 In, Outside Dia 0.240 In, Wire Dia 0.018 In, Load 1.03 Lbs, Deflection @ Load 1.21 In, Initial Tension 0.10 Lbs, Spring Rate 0.78 Lbs/In, Meets/Exceeds ASTM A313 and AMS 5688, Package 3