MS39350A, MILITARY STANDARD, RING, PISTON, OIL CONTROL, 3 PIECE CIRCUMFERENTIAL (RAIL AND EXPANDER-SPACER ASSEMBLY) (24 JUN 1982)
MS39350A, MILITARY STANDARD, RING, PISTON, OIL CONTROL, 3 PIECE CIRCUMFERENTIAL (RAIL AND EXPANDER-SPACER ASSEMBLY) (24 JUN 1982).