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 5895-01-521-4033
NSN 5925-01-634-0664
NSN 5990-01-644-3095
NSN 5835-01-200-7153
NSN 7035-01-434-6134
NSN 5835-01-245-8077
NSN 6145-01-299-7871
NSN 5930-00-486-1383
NSN 5998-00-835-7209
NSN 6645-00-222-2785
NSN 5905-00-530-8064
NSN 6645-01-299-7806