An item which by rising and descending within a gage tube indicates the level of a liquid in a reservoir.
NSN 6110-01-365-2718
NSN 6610-00-155-1334
NSN 6130-01-324-4730
NSN 5920-01-332-6414
NSN 6645-00-318-9412
NSN 5999-01-633-9816
NSN 5905-00-971-2139
NSN 6130-01-552-7870
NSN 6135-01-545-6582
NSN 7035-01-167-2241
NSN 5925-01-622-7879
NSN 6150-01-298-2868