I-beam type
An instrument used to establish the horizontal or vettical plane. It consists of a body of wood, metal or bakelite with one or more level vials and one or more plumb vials.
Classification: Handtools (including glass cutters) and parts thereof, nesoi, of basemetal
NSN 5905-01-551-1163
NSN 5915-00-710-1972
NSN 6685-00-358-1299
NSN 6685-01-207-0666
NSN 6145-01-124-9062
NSN 5930-00-284-4181
NSN 5915-01-044-1616
NSN 5945-01-101-6089
NSN 5996-00-081-3175
NSN 5835-00-698-9824
NSN 6105-01-262-4358
NSN 5999-00-203-1202