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 6145-00-758-9884
NSN 5965-01-254-3622
NSN 4140-01-221-6863
NSN 5835-01-026-0670
NSN 5835-01-540-4995
NSN 6105-00-339-4222
NSN 5960-01-193-5224
NSN 7035-01-560-2623
NSN 7035-01-145-5059
NSN 5996-01-057-9023
NSN 5998-01-614-0867
NSN 6130-01-178-7503