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 5975-00-286-8506
NSN 6150-00-286-0827
NSN 4140-00-625-1780
NSN 6610-01-531-9505
NSN 5915-01-633-9845
NSN 6105-01-314-7133
NSN 7035-00-205-1932
NSN 6685-01-600-0433
NSN 5935-00-552-1304
NSN 5945-01-447-3456
NSN 5855-01-459-9254
NSN 5905-01-043-1334