Sensitivity is one angular mi (3.375 minutes) per one-sixteenth movement of bubble
A precision instrument used to determine a horizontal plane in all directions on one setting. It is centrally located in relation to the periphery of the top of the item, for centering the bubble. The item may be mounted to a cylinder.
Classification: Drawing, marking-out or mathematical calculating instruments, nesoi
NSN 5945-00-343-6388
NSN 6685-01-300-6775
NSN 5990-00-832-9766
NSN 5925-01-535-1053
NSN 6105-00-111-0851
NSN 6135-01-056-4609
NSN 5895-01-462-7865
NSN 6620-01-510-3501
NSN 5999-01-041-4904
NSN 5996-00-272-2560
NSN 5930-01-244-7522
NSN 5960-00-326-2290