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 6610-00-757-6060
NSN 5985-00-224-2430
NSN 5945-01-506-3707
NSN 6135-00-643-4843
NSN 5915-00-244-1702
NSN 6685-00-931-7790
NSN 6645-01-261-6903
NSN 5950-01-403-2852
NSN 6150-01-320-9191
NSN 6610-00-960-9135
NSN 6320-01-512-2031
NSN 6220-00-838-2231