Hardened steel base; 5 in. L x 1 in. W x 1-1/4 in. H
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 6130-01-322-8507
NSN 6685-00-752-8240
NSN 5915-01-324-3881
NSN 5996-00-024-0827
NSN 6105-01-162-8775
NSN 6685-00-212-4531
NSN 7035-00-300-3208
NSN 5835-01-039-3346
NSN 5915-01-042-2521
NSN 5945-01-490-6648
NSN 6320-01-094-2634
NSN 6110-01-277-2563