Reference usaf dwg 56b23624, for special markings
A tachometer that is driven through the media of a mechanical connection and includes provisions for fixed mounting.
NSN 5960-00-924-1944
NSN 5985-00-081-9836
NSN 6105-00-866-6094
NSN 6150-00-836-0793
NSN 5999-01-252-0295
NSN 6220-01-473-8472
NSN 5925-01-461-2107
NSN 5975-00-901-3180
NSN 6220-01-142-3148
NSN 5935-00-966-2803
NSN 6110-00-084-5371
NSN 5910-00-725-4150