9 ranges for rpm
An instrument which measures the rate of regularly recurring variations in an electric current or voltage and is usually calibrated in hertz (cycles per second or cps). The value may be expressed by means of a pointer and calibrated dial vibrating reed or a digital read out display. For instruments which measure radio frequencies, see calibrator, frequency; and wavementer. excludes: counter electronic digital.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 2925-00-969-8340
NSN 6240-01-335-2622
NSN 6145-01-392-1305
NSN 5920-01-356-4122
NSN 6145-00-975-0912
NSN 5975-00-900-7177
NSN 6110-00-536-4962
NSN 7035-01-194-5369
NSN 2925-01-497-9381
NSN 6150-00-225-3620
NSN 5930-01-057-1687
NSN 5950-01-261-7938