A very sensitive instrument used to establish accurately the horizontal plane. It consists of a machined and scraped metal base with an involute groove or flat base. It has an adjustable or nonadjustable vial which may be graduated or plain. It has no mounting facilities.
Classification: Handtools (including glass cutters) and parts thereof, nesoi, of basemetal
NSN 6130-00-830-9974
NSN 5975-01-488-9460
NSN 6105-01-409-2023
NSN 6130-00-050-0859
NSN 5835-00-794-7500
NSN 6220-00-567-6862
NSN 6130-00-642-4264
NSN 6685-01-230-7067
NSN 6620-01-562-0615
NSN 5999-00-814-0575
NSN 5998-00-153-6178
NSN 5950-01-280-5469