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 5945-00-106-1302
NSN 6685-00-371-5492
NSN 6645-01-326-2560
NSN 6240-01-029-5988
NSN 6220-00-035-6736
NSN 6220-00-202-8591
NSN 5905-01-025-2717
NSN 6105-01-146-7728
NSN 6105-00-200-7391
NSN 6240-00-361-1421
NSN 5990-01-154-7296
NSN 6610-01-519-8953