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 2925-00-574-8796
NSN 5905-01-173-5027
NSN 5999-01-358-5984
NSN 6645-01-345-4294
NSN 5925-00-238-3072
NSN 5985-01-583-7040
NSN 6105-01-255-9970
NSN 5930-00-620-7194
NSN 6620-01-329-7510
NSN 5920-00-332-8384
NSN 7035-01-656-1901
NSN 6650-01-127-9518