Has length of 6.720 in., width of 1.750 in. And height of 6.400 in.; uses micrometer scale reading system, direct reading to 1 min of arc within plus or minus 30 sec; the horizontal circle vernier graduation unit is -10 to +90 degrees
An optical instrument consisting of a sighting tube and a quadrant scale plate, used to ascertain the angle of elevation of an object.
Classification: Levels (surveying)
NSN 6610-00-186-9180
NSN 4140-01-383-4091
NSN 5990-01-573-1634
NSN 5855-01-648-2674
NSN 6620-01-255-7757
NSN 5945-01-424-5210
NSN 5835-01-440-5391
NSN 6145-01-012-4376
NSN 5960-01-490-7030
NSN 6610-01-177-5033
NSN 6150-00-369-0376
NSN 6220-01-052-1375