Astm d2146, type i-11001; black
An item which by rising and descending within a gage tube indicates the level of a liquid in a reservoir.
NSN 6130-01-475-2902
NSN 5998-00-938-6045
NSN 5985-01-226-5443
NSN 5945-01-221-4151
NSN 5920-01-607-0771
NSN 6320-00-593-0379
NSN 5835-00-733-9145
NSN 5990-01-343-2187
NSN 5920-00-263-2192
NSN 4140-01-044-6064
NSN 6150-01-555-0085
NSN 5855-00-688-9954