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 6320-00-036-3688
NSN 5935-00-725-0927
NSN 6145-00-213-6807
NSN 6130-01-514-1905
NSN 5998-00-811-6654
NSN 5925-00-477-2703
NSN 5996-00-178-1016
NSN 6110-01-069-4895
NSN 6650-01-633-9147
NSN 6645-00-585-3809
NSN 5935-00-506-4225
NSN 6610-00-900-7685