No other part numbers with same form, fit, and function found.
A tachometer using solid state and/or vacuum tube circuitry.
NSN 6150-00-707-8804
NSN 5895-01-120-4968
NSN 5990-01-344-6176
NSN 5935-01-423-0999
NSN 6685-01-172-3213
NSN 6610-00-900-7685
NSN 7035-00-283-3112
NSN 6105-01-498-1286
NSN 6645-00-279-1777
NSN 5895-01-220-5998
NSN 5915-00-045-9071
NSN 4140-01-489-6004