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 6650-01-655-3478
NSN 5930-00-546-9035
NSN 5998-00-195-1785
NSN 5996-00-456-0895
NSN 5895-01-600-3452
NSN 6135-01-166-5042
NSN 5930-01-258-8654
NSN 5990-01-386-5561
NSN 6645-01-607-5999
NSN 5950-00-932-7119
NSN 5960-01-206-8809
NSN 6650-01-140-3371