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 5835-01-305-8866
NSN 5925-01-241-5091
NSN 6135-00-243-8330
NSN 5990-01-433-3786
NSN 6650-01-526-6800
NSN 5985-01-441-5478
NSN 5920-00-187-0260
NSN 5905-01-163-2416
NSN 5965-01-432-1943
NSN 5910-00-854-3358
NSN 5930-01-400-0892
NSN 6145-00-686-8651