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 6145-01-602-7739
NSN 4140-01-478-5637
NSN 5925-01-557-7692
NSN 5910-01-454-8443
NSN 2925-00-144-6405
NSN 5935-00-960-7453
NSN 5905-01-067-8499
NSN 6620-01-581-8283
NSN 6145-00-884-8112
NSN 5945-01-604-0313
NSN 6320-01-578-6006
NSN 5835-01-522-9881