Compression Spring Heavy Duty Color Silver Stainless Steel Finish Plain Overall Length 1-1/2 in Outside Dia 55/64 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 0.501 in Deflection @ Load 0.64 in Spring Rate 18 lb./in Meets/Exceeds ASTM A313 and AMS 5688 Package Quantity 10