A circular plate having concentric rings, each with a different number of dark segments, closed sectors, or holes. When the circular plate is placed on a rotating shaft and illuminated with a known frequency from a flashing discharge tube, it will indicate the instantaneous speed of the rotating object.
Classification: Parts and accessories of articles of schedule b subheading 9030, nesoi
NSN 5920-01-607-8055
NSN 6610-01-463-8866
NSN 6645-01-298-4662
NSN 5960-01-621-5699
NSN 5999-01-482-3249
NSN 5985-01-383-7186
NSN 6320-01-631-7828
NSN 6320-01-359-3921
NSN 6220-01-499-7194
NSN 6135-01-554-4281
NSN 6145-01-381-8911
NSN 5990-01-588-3999