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 6130-00-754-2950
NSN 6240-01-562-3309
NSN 5835-01-589-4735
NSN 6130-01-361-7480
NSN 4140-01-389-6444
NSN 6320-00-809-5744
NSN 5998-01-240-4914
NSN 5945-01-443-9114
NSN 5960-01-589-6846
NSN 4140-01-468-5434
NSN 5960-00-050-0442
NSN 7035-01-271-1643