A device which utilizes a cylindrical or circular vial, level. It is used for leveling, adjusting and setting angles for fire control instruments of which it is an integral part.
Classification: Military equipments not identified by kind
NSN 5965-01-598-1231
NSN 4140-00-165-6535
NSN 5990-00-026-4420
NSN 5935-00-529-0921
NSN 5895-01-057-2249
NSN 5990-00-288-1820
NSN 6620-01-259-2411
NSN 5895-00-420-7042
NSN 5998-00-783-6107
NSN 6150-01-423-0505
NSN 5835-00-468-3367
NSN 5915-01-219-1327