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 6685-01-240-0481
NSN 6145-01-449-1343
NSN 5895-01-441-2026
NSN 5925-01-645-4909
NSN 5930-01-218-7376
NSN 5975-01-184-0636
NSN 5895-00-456-0830
NSN 7035-01-466-1577
NSN 6650-01-433-3520
NSN 5920-01-339-7421
NSN 5985-00-159-7343
NSN 6650-01-415-2238