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 4140-01-033-1238
NSN 4140-00-170-5152
NSN 5855-01-100-3272
NSN 5915-01-136-4035
NSN 5905-00-423-0365
NSN 6620-01-297-5576
NSN 6610-00-506-1977
NSN 6110-00-951-9824
NSN 6685-01-605-1491
NSN 6685-00-225-8571
NSN 6650-01-412-1040
NSN 5915-01-105-3519