A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 5965-00-639-6621
NSN 5975-00-108-6464
NSN 6620-01-332-1691
NSN 6650-01-437-9557
NSN 5910-01-300-8930
NSN 4140-01-544-3312
NSN 6145-00-073-5205
NSN 7035-01-432-2424
NSN 6650-01-537-0443
NSN 6150-01-515-4732
NSN 5965-01-046-9619
NSN 5996-01-415-9202