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 5965-01-640-7104
NSN 7035-01-373-9617
NSN 5855-01-660-5088
NSN 5950-00-827-6462
NSN 5905-00-890-0757
NSN 5945-01-403-2800
NSN 5999-00-614-7582
NSN 5985-00-577-2920
NSN 6240-01-069-8333
NSN 5975-00-603-6258
NSN 6685-01-634-0611
NSN 5930-00-152-9386