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 6145-00-539-9799
NSN 5925-00-231-3660
NSN 5985-01-575-5572
NSN 6620-00-229-2728
NSN 5965-00-170-5254
NSN 6620-00-189-0967
NSN 5915-01-429-9287
NSN 6145-01-513-6352
NSN 4140-01-389-6444
NSN 5855-01-027-1571
NSN 6240-01-435-0862
NSN 5965-01-278-2107