No other part numbers with same form, fit, and function found.
A tachometer using solid state and/or vacuum tube circuitry.
NSN 5996-00-351-2369
NSN 5999-01-149-2001
NSN 6110-01-499-9123
NSN 5935-00-549-2656
NSN 5935-01-605-2726
NSN 5960-00-226-4977
NSN 6220-01-060-4984
NSN 6130-01-092-4882
NSN 5999-01-057-8412
NSN 6150-01-440-8807
NSN 5835-00-334-6556
NSN 5985-00-541-7714