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 6320-01-445-5893
NSN 2925-01-317-4543
NSN 5998-01-007-2870
NSN 5998-00-171-2355
NSN 6620-01-068-6224
NSN 5920-01-387-0819
NSN 5910-01-310-8533
NSN 5975-01-513-8763
NSN 5915-00-269-9252
NSN 6240-00-455-7640
NSN 6110-01-640-7237
NSN 6685-01-086-4715