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 5855-01-286-2916
NSN 5920-01-436-5138
NSN 5985-01-422-0534
NSN 5930-00-609-9342
NSN 5965-00-416-6618
NSN 6320-00-312-7348
NSN 5855-00-361-0167
NSN 5990-01-045-2129
NSN 6105-00-920-8655
NSN 6240-01-147-7494
NSN 5990-00-589-5045
NSN 6240-01-579-4734