Compression Spring Heavy Duty Color Silver Stainless Steel Finish Plain Overall Length 1 in Outside Dia 55/64 in Wire Type Round Wire Dia 0.068 in End Type Squared and Ground Large Outside Dia 0.360 in Small Outside Dia 0.125 in Compressed Length 0.342 in Deflection @ Load 0.43 in Spring Rate 21 lb./in Meets/Exceeds ASTM A313 and AMS 5688 Package Quantity 10