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 6645-00-679-8203
NSN 4140-00-343-2121
NSN 5920-00-269-6178
NSN 6320-01-123-6814
NSN 6150-00-296-2361
NSN 5915-01-089-3293
NSN 5960-01-282-2386
NSN 5996-01-202-9338
NSN 6620-01-549-3559
NSN 6685-00-849-3158
NSN 5925-00-405-7707
NSN 5945-01-463-8708