Sensitivity is one angular mi (3.375 minutes) per one-sixteenth movement of bubble
A precision instrument used to determine a horizontal plane in all directions on one setting. It is centrally located in relation to the periphery of the top of the item, for centering the bubble. The item may be mounted to a cylinder.
Classification: Drawing, marking-out or mathematical calculating instruments, nesoi
NSN 5945-01-153-7853
NSN 5835-01-657-0245
NSN 5998-01-347-2698
NSN 5910-01-576-8402
NSN 5985-01-431-8882
NSN 5960-01-614-8005
NSN 6135-00-422-3967
NSN 5855-01-145-8973
NSN 4140-01-412-3933
NSN 6220-01-055-7423
NSN 5945-00-918-8808
NSN 6320-01-029-4220