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 6650-01-003-4144
NSN 5999-01-508-8832
NSN 5935-01-294-4709
NSN 6610-01-297-9439
NSN 5935-00-150-2929
NSN 6620-01-505-3496
NSN 5915-00-931-0209
NSN 6150-01-107-2869
NSN 6145-00-106-0611
NSN 5930-00-086-9242
NSN 6645-00-103-2517
NSN 6620-00-227-6776