MS21209E, MILITARY STANDARD: INSERT, SCREW THREAD, COARSE AND FINE, SCREW LOCKING, HELICAL COIL, CRES (21 FEB 1978) [S/S BY NASM21209]
MS21209E, MILITARY STANDARD: INSERT, SCREW THREAD, COARSE AND FINE, SCREW LOCKING, HELICAL COIL, CRES (21 FEB 1978) [S/S BY NASM21209].