An item consisting of two separate mounting brackets, one having an aperture with cross hairs, the other with a plain aperture; or each with a fitted device with such apertures. It is attached to a level or straightedge and is used as an inexpensive substitute for surveyors' instruments to level and align walls, grades, fences, and the like. See also level, surveying.
Classification: Parts and accessories for surveying
NSN 5925-01-438-6720
NSN 5990-01-054-3332
NSN 5990-00-660-8885
NSN 5920-01-391-4884
NSN 5920-01-040-7718
NSN 5985-01-232-0803
NSN 5905-01-200-1116
NSN 6650-01-362-3835
NSN 6145-01-284-5805
NSN 5835-01-386-4027
NSN 5915-01-499-9112
NSN 5950-01-112-0085