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 6610-01-451-5503
NSN 2925-01-279-1558
NSN 5985-00-673-5831
NSN 4140-01-346-2965
NSN 6685-01-053-3750
NSN 5855-00-130-5756
NSN 6110-00-525-3418
NSN 6685-01-607-6481
NSN 6145-00-942-0981
NSN 5905-00-498-5116
NSN 5950-01-443-3321
NSN 6240-01-022-3917