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 5975-00-297-3940
NSN 5998-01-269-0306
NSN 6320-00-513-8376
NSN 5975-01-097-0958
NSN 5855-01-047-2136
NSN 5950-01-371-1296
NSN 6150-00-596-9253
NSN 6220-01-447-4156
NSN 5895-01-370-4799
NSN 5915-01-592-4639
NSN 5999-00-290-5898
NSN 5920-01-429-2213