MIL-C-10405A (SUPPLEMENT-1A), MILITARY SPECIFICATION: CRYSTAL UNITS, QUARTZ, PRESSURE AND SPACER MOUNTED, GENERAL SPECIFICATION FOR (18-OCT-1967) [NO S/S DOCUMENT]
MIL-C-10405A (SUPPLEMENT-1A), MILITARY SPECIFICATION: CRYSTAL UNITS, QUARTZ, PRESSURE AND SPACER MOUNTED, GENERAL SPECIFICATION FOR (18-OCT-1967) [NO S/S DOCUMENT].