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 6220-00-959-5970
NSN 6135-00-318-8359
NSN 6240-01-488-3094
NSN 5998-00-102-2563
NSN 6320-00-379-4695
NSN 6650-01-349-6097
NSN 5960-01-151-4518
NSN 5998-01-109-8169
NSN 6135-01-481-9031
NSN 6240-00-617-9599
NSN 5835-00-007-6824
NSN 5965-01-148-4979