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 5996-01-251-0526
NSN 5935-00-738-9227
NSN 5835-01-512-4834
NSN 5935-01-378-5937
NSN 6685-01-112-0458
NSN 6650-01-327-3068
NSN 6135-01-177-3552
NSN 6650-00-161-4122
NSN 5990-01-602-6701
NSN 6650-01-105-0209
NSN 6110-01-400-4207
NSN 5835-01-200-7153