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 6650-01-082-3535
NSN 5895-01-492-9461
NSN 5950-01-170-4174
NSN 5925-01-399-0613
NSN 5895-00-946-7250
NSN 5965-01-646-9972
NSN 6105-01-068-4366
NSN 5920-00-941-3424
NSN 5990-01-423-8189
NSN 5930-00-249-7430
NSN 5855-01-222-1242
NSN 6220-00-166-9796