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 6645-01-227-9429
NSN 2925-01-434-6945
NSN 5998-01-580-0758
NSN 6150-01-357-6518
NSN 6240-01-252-8850
NSN 6650-00-826-7396
NSN 6135-01-142-6456
NSN 5935-00-914-9006
NSN 6110-00-553-8816
NSN 5960-00-223-3849
NSN 6220-01-268-1318
NSN 5910-01-641-4373