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 5990-00-115-5851
NSN 5905-01-224-7196
NSN 5998-01-465-3215
NSN 6150-01-161-3581
NSN 5930-00-370-1330
NSN 6620-01-110-6803
NSN 6610-01-306-8530
NSN 7035-01-258-7661
NSN 5996-00-925-1324
NSN 5930-01-508-3656
NSN 5935-01-632-1493
NSN 2925-01-386-7392