Extension Spring, Ultra Precision, 302 Stainless Steel, Plain, End Type Full Twist Loops, Overall Length 1 1/4 In, Outside Dia 0.360 In, Wire Dia 0.037 In, Load 5.13 Lbs, Deflection @ Load 1.14 In, Initial Tension 0.43 Lbs, Spring Rate 4.08 Lbs/In, Meets/Exceeds ASTM A313 and AMS 5688, Package 3