MIL-T-16049C (NOTICE-1), MILITARY SPECIFICATION: TACHOMETERS: ELECTRICAL; SELF-GENERATING; MECHANICAL, FIXED MOUNTING AND HAND HELD; AND VIBRATING REED (07-JUN-1991) [S/S BY A-A-59734]
MIL-T-16049C (NOTICE-1), MILITARY SPECIFICATION: TACHOMETERS: ELECTRICAL; SELF-GENERATING; MECHANICAL,
FIXED MOUNTING AND HAND HELD; AND VIBRATING REED (07-JUN-1991) [S/S BY A-A-59734].