Compression Spring Heavy Duty Color Dark Gray Music Wire Finish Plain Overall Length 4-1/2 in Outside Dia 1-7/32 in Wire Type Round Wire Dia 0.207 in End Type Squared and Ground Large Outside Dia 0.360 in Small Outside Dia 0.125 in Compressed Length 3.161 in Deflection @ Load 0.85 in Spring Rate 196 lb./in Meets/Exceeds ASTM A228 and AMS 5112 Package Quantity 10