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 6110-01-312-5172
NSN 6620-00-635-2417
NSN 5910-01-182-1212
NSN 6650-01-341-5330
NSN 5960-01-230-2806
NSN 2925-01-510-2221
NSN 5905-00-141-5807
NSN 6150-00-452-1086
NSN 5930-01-434-5706
NSN 5985-01-505-6010
NSN 5965-01-337-1217
NSN 6150-01-512-1352