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 6650-00-162-6638
NSN 6135-00-877-1659
NSN 6145-00-537-7059
NSN 6150-00-257-5027
NSN 5990-01-621-6969
NSN 5950-01-020-7717
NSN 5855-01-440-9880
NSN 2925-00-924-7745
NSN 5905-01-014-0178
NSN 6145-01-322-7606
NSN 5975-00-173-1810
NSN 4140-01-497-2716