An item which by rising and descending within a gage tube indicates the level of a liquid in a reservoir.
NSN 6105-00-265-3185
NSN 5855-00-149-0766
NSN 5945-01-163-5198
NSN 5855-01-222-1242
NSN 5920-01-605-3102
NSN 7035-01-293-1971
NSN 5999-01-448-1234
NSN 5996-01-462-1631
NSN 6105-01-051-3001
NSN 6650-01-586-9997
NSN 5930-01-556-7138
NSN 6110-01-121-8318