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 5975-00-055-6044
NSN 6145-00-689-9339
NSN 6240-00-145-1351
NSN 5985-01-375-6794
NSN 6645-01-609-7365
NSN 2925-00-253-1655
NSN 7035-00-445-9657
NSN 5975-01-248-7078
NSN 5905-01-577-0026
NSN 6610-01-116-9276
NSN 5910-00-098-9281
NSN 5935-00-932-3329