No other part numbers with same form, fit, and function found.
A tachometer using solid state and/or vacuum tube circuitry.
NSN 5935-01-445-7064
NSN 5930-01-378-4357
NSN 5998-00-008-5786
NSN 6110-00-858-6770
NSN 5996-01-005-5134
NSN 5895-01-615-1004
NSN 6650-01-525-7370
NSN 6685-00-837-7843
NSN 5855-01-331-8502
NSN 6145-01-096-6848
NSN 5925-00-499-2160
NSN 6320-01-512-2031