MIL-C-228A (NOTICE 1), MILITARY SPECIFICATION: CIRCLES, AZIMUTH; AND CIRCLES, BEARING (18 JAN 1991) [NO S/S DOCUMENT]

MIL-C-228A (NOTICE 1), MILITARY SPECIFICATION: CIRCLES, AZIMUTH; AND CIRCLES, BEARING (18 JAN 1991) [NO S/S DOCUMENT]., MIL-C-228A is inactive for new design and is no longer used by the Navy except for replacement purposes.