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 5920-01-109-9031
NSN 5965-00-223-4575
NSN 5945-00-789-5283
NSN 5965-01-629-4641
NSN 5999-00-552-5355
NSN 6110-01-063-7423
NSN 6150-01-012-2898
NSN 7035-01-472-8658
NSN 5950-01-076-9308
NSN 5998-01-188-7341
NSN 6220-01-020-8018
NSN 6685-01-168-4994