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 5930-01-420-3985
NSN 5855-01-426-5589
NSN 6130-00-886-9780
NSN 5999-01-252-8092
NSN 5996-01-422-7288
NSN 6220-01-441-2249
NSN 4140-01-015-9283
NSN 6320-01-504-3948
NSN 4140-01-250-1128
NSN 6220-01-081-0593
NSN 6645-01-066-6665
NSN 5855-01-491-4623