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 5930-01-141-7740
NSN 5895-00-755-4647
NSN 5935-01-281-6873
NSN 5990-01-421-3325
NSN 5920-01-531-6891
NSN 5998-00-001-4642
NSN 5895-00-707-1404
NSN 5998-01-106-1303
NSN 5855-00-869-3635
NSN 6150-00-614-2132
NSN 5996-00-614-9310
NSN 5945-01-138-8751