A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 5990-01-605-4769
NSN 5905-00-258-2714
NSN 5945-01-467-2242
NSN 6105-01-551-1263
NSN 7035-01-160-0486
NSN 5965-00-281-0319
NSN 5920-00-826-0949
NSN 6240-01-388-2261
NSN 6240-00-182-7944
NSN 5960-01-163-6416
NSN 6150-01-541-4278
NSN 5905-01-004-5526