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 5975-01-532-9909
NSN 5960-01-399-4327
NSN 5950-01-056-6303
NSN 6150-01-400-4211
NSN 6685-01-099-8539
NSN 5910-00-179-0572
NSN 5950-00-553-9439
NSN 5905-01-572-1933
NSN 5925-00-425-6228
NSN 5925-01-277-1980
NSN 5835-00-264-0946
NSN 5910-01-468-0221