6.25 in. By 0.68 in. Dia
A sensitive instrument used to establish accurately the horizontal plane. It consists of a vial(s) in an enclosure which may or may not have mounting holes. It is mounted in or on a flat plate base. The vial may be graduated or plain.
Classification: Drawing, marking-out or mathematical calculating instruments, nesoi
NSN 6220-01-331-7115
NSN 6220-00-111-7318
NSN 5999-01-317-2215
NSN 5975-01-363-4610
NSN 6130-00-830-2701
NSN 4140-01-346-8219
NSN 6145-00-099-8986
NSN 5965-01-227-9937
NSN 6610-00-837-3012
NSN 5930-01-100-4643
NSN 5998-01-453-8745
NSN 6135-01-370-9441