Compression Spring Heavy Duty Color Silver Stainless Steel Finish Plain Overall Length 1/2 in Outside Dia 27/64 in Wire Type Round Wire Dia 0.063 in End Type Squared and Ground Large Outside Dia 0.360 in Small Outside Dia 0.125 in Compressed Length 0.345 in Deflection @ Load 0.11 in Spring Rate 152 lb./in Meets/Exceeds ASTM A313 and AMS 5688 Package Quantity 10