| GENERAL CHARACTERISTICS ITEM DESCRIPTION | MATERIAL IS STEEL,CORROSION RESISTANT,AMS 5643. HEAT TREATMENT IS ACCORDING TO MIL-H-6875--190KSIMIN. THE FINISH IS PASSIVATED WITH SPEC ES-F59-2. IF SOLID,THE O.D. IS 3.005 TO 3.010 IN. AND THE I.D. IS 2.570 TO 2.575 IN.; THE THICKNESS IS 0.135 TO 0.140 IN. THE RING IS DIVIDED INTO THREE EQUAL SEGMENTS. EACH BREAK IN THE RING IS 0.030 IN. WIDE. |