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 6105-01-099-1113
NSN 6685-00-991-1264
NSN 6610-01-164-8469
NSN 5905-00-541-1471
NSN 4140-01-447-6350
NSN 5990-01-472-2447
NSN 6150-01-114-3771
NSN 6320-01-643-0850
NSN 5855-01-325-9507
NSN 6135-01-364-0667
NSN 5855-01-455-3317
NSN 5996-01-366-2140