An item which, by rising and descending within a gage tube in response to a rate of flow, indicates on a graduated scale the volume of flow.
NSN 5855-01-130-1501
NSN 5895-00-962-8920
NSN 5998-01-004-6664
NSN 5835-01-471-2861
NSN 5920-01-092-1148
NSN 5999-01-541-5464
NSN 6130-00-631-2309
NSN 5920-01-187-3720
NSN 5965-01-370-1891
NSN 6130-01-364-9664
NSN 6620-00-392-2832
NSN 5960-01-649-1341