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 6220-01-512-2028
NSN 6110-00-727-9175
NSN 5985-00-437-9447
NSN 5945-00-182-2869
NSN 6105-01-609-0477
NSN 6650-00-458-7586
NSN 5945-00-502-9644
NSN 4140-01-118-0789
NSN 6150-01-167-9706
NSN 5895-01-535-7082
NSN 6240-01-291-7500
NSN 5895-01-536-4648