No other part numbers with same form, fit, and function found.
A tachometer using solid state and/or vacuum tube circuitry.
NSN 6130-00-076-3554
NSN 5975-00-087-4341
NSN 5998-00-182-5094
NSN 7035-00-763-6180
NSN 5990-01-386-5561
NSN 2925-00-816-8765
NSN 6320-00-905-0543
NSN 6620-01-453-9971
NSN 6240-01-124-1829
NSN 6240-00-070-6615
NSN 5925-01-634-0664
NSN 5930-01-378-7763