An item which by rising and descending within a gage tube indicates the level of a liquid in a reservoir.
NSN 6145-01-519-2087
NSN 6130-01-471-9546
NSN 5965-01-655-9656
NSN 5998-01-601-2281
NSN 5990-01-485-0260
NSN 5925-01-280-8390
NSN 5985-01-481-4770
NSN 5975-00-905-5194
NSN 5996-00-237-8748
NSN 7035-01-528-7870
NSN 5965-01-377-3587
NSN 5935-00-059-5880