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 5905-00-830-4630
NSN 6240-00-849-5026
NSN 6240-01-326-3040
NSN 5835-01-631-7390
NSN 5998-00-045-3867
NSN 5950-00-911-7015
NSN 5996-01-087-0414
NSN 6145-01-023-1526
NSN 5950-01-250-1333
NSN 5945-00-636-9934
NSN 5925-01-316-8294
NSN 6650-00-162-0951