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 5998-01-573-7338
NSN 5960-00-806-5614
NSN 6685-00-050-7721
NSN 5910-01-029-2290
NSN 5895-01-391-2728
NSN 5925-01-224-7031
NSN 5960-00-479-5515
NSN 4140-01-418-0831
NSN 6110-01-576-9899
NSN 6645-00-536-1555
NSN 5835-01-480-3484
NSN 2925-01-055-7607