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 6105-01-202-0504
NSN 5895-01-572-4223
NSN 4140-01-065-1884
NSN 5920-01-316-8286
NSN 5950-01-426-4021
NSN 5935-01-279-0194
NSN 6145-01-482-4647
NSN 5960-01-123-9553
NSN 6320-00-343-1798
NSN 6685-00-399-3250
NSN 5965-00-995-6636
NSN 5960-00-419-4521