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 5910-01-578-5967
NSN 5960-00-841-1868
NSN 6220-01-330-6650
NSN 5895-01-024-9573
NSN 6320-00-343-1798
NSN 5945-01-585-0712
NSN 6610-01-115-5791
NSN 6145-01-495-9758
NSN 5990-00-784-1254
NSN 6620-00-498-7781
NSN 6240-00-350-9508
NSN 5935-00-283-7830