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 5855-01-502-5141
NSN 6620-01-262-5128
NSN 7035-01-160-4423
NSN 5925-01-413-6811
NSN 2925-00-816-8765
NSN 5945-00-445-8608
NSN 5915-01-085-3086
NSN 5998-01-092-9341
NSN 5985-01-593-2431
NSN 5965-01-479-9155
NSN 5985-00-205-9568
NSN 6145-01-078-2458